colitur.git/data/ef/adjustments.sexp, branch v0.1.0

ef(lectionary): the Commons, chain step 4

2026-08-14T23:40:54Z

Fifteen class-3 saints had no readings anywhere in colitur -- the 6 March - 5 April cluster whose RANKS lectio's generator fix of 2026-08-12 restored without backfilling readings, and lectio has no Commons concept to have backfilled them from. They are exactly the fifteen `status Feast` entries in data/ef/sanctoral.sexp carrying `(citations ())`. The Missal splits them eight/seven, and NOT as the plan predicted. It expected propers for Benedict, Patrick, Thomas Aquinas and Gregory the Great; only Thomas Aquinas has one. Benedict ("Missa Os iusti, de Communi Abbatum"), Patrick ("Missa Statuit, de Communi Confessoris Pontificis I loco") and Gregory the Great ("Missa Si diligis me, de Communi unius aut plurium Summorum Pontificum") are all sent to a Common, with only Oratio, Secreta and Postcommunio printed at the date. All three reversals verified on the page images (pp. 488, 492) as well as in both OCR text layers. PROPERS (data/ef/adjustments.sexp, `Edit ... Set_citation`): thomas-aquinas 7 Mar Sap 7:7-14 / Mt 5:13-19 john-of-god 8 Mar Eccli 31:8-11 / Mt 22:34-46 forty-holy-martyrs 10 Mar Hebr 11:33-39 / Luc 6:17-23 cyril-of-jerusalem 18 Mar Eccli 39:6-14 / Mt 10:23-28 gabriel-the-archangel 24 Mar Dan 9:21-26 / Luc 1:26-38 john-damascene 27 Mar Sap 10:10-17 / Luc 6:6-11 john-of-capistrano 28 Mar Sap 10:10-14 / Luc 9:1-6 francis-of-paola 2 Apr Philipp 3:7-12 / Luc 12:32-34 COMMONS (data/ef/commons.sexp), each quoting the Missal's own instruction at the saint's date: sts-felicitas-perpetua 6 Mar non Virginum I Eccli 51:1-8,12 / Mt 13:44-52 frances-rome 9 Mar non Virginum II Prov 31:10-31 / Mt 13:44-52 gregory-the-great 12 Mar Summ. Pontificum 1 Petri 5:1-4,10-11 / Mt 16:13-19 patrick 17 Mar Conf. Pont. I Eccli 44:16-27;45:3-20 / Mt 25:14-23 benedict 21 Mar Abbatum Eccli 45:1-6 / Mt 19:27-29 isidore-of-seville 4 Apr Doctorum 2 Tim 4:1-8 / Mt 5:13-19 vincent-ferrer 5 Apr Conf. non Pont. I Eccli 31:8-11 / Luc 12:35-40 Every value read in three independent places -- both OCR text layers (two DIFFERENT printings, whose Commune Sanctorum pagination differs by 1-2, so the data keys on heading plus Mass incipit and never on the bracketed page number) and the rendered page images. That caught a genuine typographical error in one printing: it gives St Gabriel's Gospel as "Luc. 2, 26-38" (on the page image, so not an OCR artefact). Luke 1:26-38 is settled by the other printing, by the pericope text in both, and by the SAME edition citing the identical pericope correctly two pages later at the Annunciation. Step 4 EXECUTES SECOND (order 1, 4, 2, 3), not last as the plan sketched. Measured: every day on which one of the fifteen is actually the observed office already has a non-empty step-2 or step-3 answer waiting, so a step 4 placed after the ferial fallback is unreachable on every date in 1583-9999 -- and wrong where it would fire (2038-03-06 would emit Septuagesima II Saturday's Mass on a day whose office is Sts Perpetua and Felicity). Step 4 is also the only step in the chain with a direct primary-source warrant: the Missal names the Mass at each such saint's own date, while steps 2 and 3 rest only on lectio's observed behaviour. Guarded so it can never divert a day whose observed office IS its temporal office -- ferias, Sundays, the Triduum and the RG 78 Saturday Office of the BVM (which deliberately shares the ferial slug) are structurally excluded. Step NUMBERS are unchanged so every "step 3" already written down still names the same branch. The Commons are caller-supplied, like the lectionary: `Rite_ef.context` gains a REQUIRED `~commons`, not an optional one -- a silently-defaulted empty table would give a rite whose class-3 saints quietly lose their Mass, and nothing in layers 3-5 compares citations, so that loss would be invisible. `Commons.load` rejects the four defects indistinguishable downstream from "this saint has no Common": duplicate common id, duplicate assignment, empty formulary, assignment naming a common that does not exist. KNOWN LIMITS, recorded rather than papered over. There is no oracle: lectio has no readings for these feasts and missalemeum's 2026-2027 window never observes one of the fifteen. Eight of the fifteen are NEVER the observed office anywhere in the domain (10-28 March always falls to a Lenten or Passiontide feria that outranks a III-class feast), so they have no end-to-end witness and are covered by dedicated table tests instead. The Commune Sanctorum's own opening rubric permits any Epistle or Gospel of a Common in any Mass of that Common unless one is assigned, so what is emitted is the reading PRINTED WITH the named formulary, not the only lawful one; labelled alternatives (e.g. the widow's Epistle 1 Tim 5:3-10, squarely available to St Frances of Rome) are noted in the data and deliberately not encoded. The BVM Common is NOT authored: the RG 78 Saturday Office shares the ordinary ferial slug, so assigning a Common to it would hand the BVM Mass to every feria sharing that slug; routing it needs a subject-keyed lookup and a season-keyed choice among the Missal's five "Missae de sancta Maria in sabbato" -- new behaviour, not new data. It currently emits its feria's Mass, now pinned as such. Blast radius, measured (git archive HEAD binary vs HEAD, full 1583-9999 `colitur day` sweep, diffed): ZERO differing lines, 3 074 246 lines each side, byte-identical -- the CLI prints no citations, so this change is invisible to layers 2-5 by construction, and the sanctoral overlay perturbed nothing else. 357 tests green (344 before), 358 with the exhaustive sweep. Mutation-tested six ways, all reverted after confirming: relegating step 4 to last reddens exactly the four step-4 pins and nothing else; corrupting a Common's citation, dropping an assignment, dropping a proper Edit, and corrupting either an unreachable proper or an unreachable Common each redden their own pins. The load-bearing assertion is stated over the loaded layer rather than a hard-coded list: every sanctoral entry that can ever BE the observed office now has either a proper or an assigned Common -- fifteen failures before, zero after, and a future re-bootstrap adding a readingless class-3 feast fails there instead of silently emitting its feria's Mass.

fix(ef): three colour corrections that contradicted the Missal by name

2026-08-14T10:40:24Z

The sanctoral audit set chair-of-st-peter (22 Feb), conversion-of-st-paul (25 Jan) and peter (25 Jan, commemoration) to Red on RG 124(b). All three are reverted to White. RG 120(f), fifteen lines above RG 124(b) in the same column of the same page, names two of them in its enumeration of white: "Cathedrae S. Petri (22 februarii); Conversionis S. Pauli (25 ianuarii)". RG 124(b)'s own qualifier "in eorum die natalicio" independently excludes them, and RG 475(e) confirms it a third time by naming the Chair separately from "natalician feasts of Apostles". lectio and missalemeum both said white because both were right. peter rested on "match the host day's Red", whose host is white by that same clause, so the precedent inverts. Root cause: the audit's page-image method, its real advance, was applied to the calendarium and not to the rubric. RG 124 was read from the OCR text layer, where the two-column interleave shreds RG 120(f) across rows belonging to RG 115 and hyphen-splits Cathedrae, so a text-layer grep for it returns nothing while RG 124's enumeration survives cleanly. That read finds 124 and structurally cannot find 120(f). Two sentinels had been reporting this correctly and were overridden. The golden pin at 1902-02-22 asserted colour=white, was changed to red, and had its comment rewritten to guard against "a regression back to the old one" -- the only pin asserting a colour for any of the 21 slugs. And C18 and M21 both listed the two slugs under an RG 124(b) citation where both oracles were right. Pin restored; slugs dropped; C18 re-derived 526->450 from the observed-day counts, M21 20->18, M15 17->18. The audit's own discriminator would have isolated these. Its stated corroboration was that lectio's name.pl contradicts lectio's colour; run as a gate across all 21 that splits 17 genuine defects from 4 needing adjudication, and three of those four are these. It was quoted as illustration rather than used as a gate. 18 of 21 corrections stand, and the twelve whites are recited to RG 120(e) "Sanctorum non Martyrum" rather than to RG 117's negative residual. Also records Anastasia's deliberate non-fix in the tracked tree beside barbara, where the next auditor will be standing.

data(ef): sanctoral audit — one genuine gap, 21 wrong colours (RG124)

2026-08-14T10:00:24Z

Full re-extraction of the primary CALENDARIUM (both photographic scans, missale-romanum-1962.pdf and Missale Romanum 1962_text.pdf, rendered page images read directly rather than trusting either PDF's own OCR text layer) against all 327 base sanctoral entries plus the two prior overlay Adds. Both scans agree throughout; no OCR ambiguity required adjudication this round. Add `barbara` (4 December): both scans carry a Commemoratio nested under Peter Chrysologus's own entry, absent from data/ef/sanctoral.sexp AND from lectio's own tridentine-calendar.ini (confirmed directly) — the same upstream-gap shape as the five entries the ef-rebootstrap task already added (agnes-secundo/boniface-martyr/eusebius-confessor/evaristus/ theodore). Correct 21 sanctoral colours against RG 124 ("De coloribus paramentorum"), scan-verified word for word: 124(b) red for an Apostle/Evangelist's own feast day except John's (27 December, already correct); 124(e) red for a Martyr's own martyrdom; RG 117's five-colour residual otherwise white. Every one of the 21 is a confirmed lectio/missalemeum bootstrap defect — checked individually against lectio's own ini, several of whose Polish name fields already contradict that same record's own colour tag (e.g. `martha`: "Dziewicy", Virgin, no "Męczennicy", yet `colour = red`) — the identical root cause and mechanism the `eusebius-confessor` fix already established. Colour is confirmed read nowhere in Precedence_ef's resolution logic (grep), so these are output-correctness fixes with zero observed-office blast radius; three (apollinaris/josaphat/chair-of-st- peter) additionally disagree with missalemeum's own oracle, not only with lectio, so they are adjudicated from RG 124's text directly rather than by which engine happens to agree. Both corrections applied via data/ef/adjustments.sexp's established Overlay mechanism (data/ef/sanctoral.sexp stays generated, untouched). Pinned: test_rite_ef.ml (two new tests, verified to fail against the pre-fix data); test_differential.ml's new C18 predicate (526 rows, 2005-2050) and test_oracle.ml's new M21/M22 predicates (20 + 2 rows, 2026-2027), each with data/ef/expected-divergences{,-missalemeum}.sexp entries citing RG124 or the matching upstream-gap precedent; test_golden.ml's 1902-02-22 pin corrected (chair-of-st-peter was white in the stale pin, RG124(b) makes it red). All 329 tests green, including the full 1583-9999 exhaustive sweep. Full method, per-entry adjudication table and corrected bucket counts: docs/research/rules-register.md (gitignored) and .superpowers/sdd/2026-08-12-colitur-rg16a/sanctoral-audit-report.md (gitignored).

feat(ef): the Major Litanies -- entity, RG80 transfer, RG109(f) privilege

2026-08-13T18:15:28Z

RG 80 (Caput X, "De Litaniis maioribus et minoribus", A): the Major Litanies are assigned to 25 April, transferred to the following Tuesday (always Easter+2) when that date is Easter Sunday or Easter Monday. RG 81, same division: nothing is done in the Office, only in the Mass. RG 109(f) (Caput XVI): a privileged commemoration. Entity: Commemoration_only, Fixed(4,25), via data/ef/adjustments.sexp's `Add major-litanies` -- RG 81 denies it Office standing entirely, which is exactly what Commemoration_only already means to Precedence.resolve (held out of the observed contest by construction). Rank Class4 deliberately, not Class1, to keep the new RG109(f) privilege branch live rather than shadowed by privilege_of's existing "of a I-class day" branch. Colour Violet by consistency with the sibling Minor Litanies; subject Saint, the same "no special exclusion" default this codebase's other Commemoration_only entries use. Names not primary-sourced, flagged as such in the data file's own comment. Transfer: reuses the existing RG 96 placement machinery (Precedence.disposition's Transfer constructor + Calendar's place_transfers/resolve_with_injected) rather than a new candidate channel -- RG 80's own transfer is structurally the same operation RG 96 already performs for an impeded I-class feast. disposition gains a branch, checked before the Commemoration_only catch-all: the Litanies losing to winner slug "ef-easter-sunday" or "ef-easter-1-monday" is Transfer, not Commemorate. transfer_target gains a branch, checked before the general RG 96 search is even computed, returning Easter+2 directly with no search at all -- necessary, not merely simpler, since Easter+2 is itself I-class and a search from there would walk past the exact day RG 80 names (a commemoration needs no unoccupied day the way a displaced feast does). Privilege: privilege_of's previously-dead RG 109(f) branch now recognises the Litanies' own slug. No other code change -- admit's existing Class1/Class2-Sunday branches already implement "a privileged commemoration categorically takes the slot" correctly, from an earlier task. Full blast-radius measurement, adjudication of the resulting missalemeum divergence, and the mutation proofs are in the task's own report, .superpowers/sdd/2026-08-12-colitur-rg16a/major-litanies-report.md.

fix round 1: RG 110(c)'s ordering was inverted; M19 lacked an identity gate

2026-08-13T10:01:25Z

RG 110(c), word for word: "quoties vero oratio unius Apostoli addenda est ad modum commemorationis, huic orationi additur altera immediate, ante omnes alias commemorationes." "Huic orationi" (dative, "to this oration") refers to the trigger's own oration; "additur altera" means the companion is added to it, i.e. follows it. "Ante omnes alias commemorationes" governs the pair's position relative to other, unrelated commemorations, not the pair's own internal order. The previous build prepended the companion uniformly in both RG 110 shapes, citing this same clause for both -- correct for (a)/(b) (the day's own oration, not a list member, has nothing to order against), backwards for (c), where the trigger is itself a list member and the companion belongs after it. Fixed in rg110_additions: shape (a)/(b) still prepends; shape (c) now splices the companion in immediately after its own trigger. Re-pinned the unit test that had asserted the wrong order, and corrected both rows' comments to cite the clause that actually governs each shape. No layer in this codebase compares commemoration order: the lectio differential never compares commemorations, the oracle sorts both sides into a multiset, and the golden tests' own describe function sorts its commemorations field too. Recorded as a new, permanent blind spot in CLAUDE.md and the register, not merely fixed around -- the admit_cases unit table is the only place order is asserted at all. Re-measured the full blast radius against the same pre-change binary: same 14,627 differing days, same four shapes and counts, confirming the fix changed only the content of the 593 shape-(c) rows and nothing else. Mutation-tested: reverting the splice back to a uniform prepend reddens exactly the shape-(c) unit test; a new golden pin for a real shape-(c) day (2004-02-22) stays green under the same mutation, living proof that golden pins cannot see this axis, not merely a claim. Separately, M19's own predicate checked a date and a diff shape but not which candidate -- proved insufficient by fabricating a second, bogus companion on 30 June and confirming the whole suite stayed green. Fixed by requiring the admitted commemoration to be exactly commemoration-of-st-peter, mirroring C16's own identity guard. Added a golden pin for 30 June, the only assertion of that entry's identity outside the allow-list. Also: corrected a false claim in the task report that the electronic transcription carries no corroboration of the Holy Name fallback -- its own table of contents does, at a line not checked on the first pass. Added two further citations, both re-verified against the scan: RG 17's own closing paragraph, settling the Sunday shape's Sunday- exclusion at the rubric level rather than only in the propers; RG 124(c), which assigns red to 30 June by paragraph number rather than by the generic apostle/martyr default. Noted the fragility of deriving the Sunday shape's RG 109(a) privilege from a slug-substring match rather than from a citation. Cosmetic: a stray blank line and an indentation inconsistency.

precedence(ef): RG 110, the inseparable Peter/Paul commemoration

2026-08-13T09:19:19Z

RG 110 (Caput XIV): "In Officio et Missa S. Petri semper fit commemoratio S. Pauli, et vicissim... pro unica habeantur" -- in the Office and Mass of either Peter or Paul, a commemoration of the other is always made, uncapped by RG 111's own admission count. Both photographic scans, full text including sub-clause (c) (a separate trigger this register previously had not transcribed: the same rule also fires when one Apostle's oration is admitted merely as an ordinary/privileged commemoration, not only when it is the day's own office). Three real pairs in the 1962 calendar, all confirmed on both scans: 25 January (conversion-of-st-paul + peter), 22 February (chair-of-st-peter + paul), 30 June (in-commemoratione-sancti-pauli-apostoli + a new commemoration-of-st-peter). The first two already existed as ordinary sanctoral candidates but were wired into RG 111's ordinary, capped admission contest instead of this rule's own uncapped one -- the defect this closes. 30 June had no companion at all: a genuine gap in lectio's own source data (confirmed directly against tridentine-calendar.ini) and in missalemeum's own oracle output for both fixture years, not only a colitur bootstrap miss, so colitur is now uniquely correct on this date among the three engines compared. Added via data/ef/adjustments.sexp's own Add directive, the architecture's existing extension point for exactly this shape of gap, since data/ef/sanctoral.sexp is generated and lectio must not be touched. Precedence_ef.admit gained rg110_additions/rg110_companion_slug, layered on after admit's own four ordinarily-capped branches decide their normal result: checks both the observed candidate and every already-admitted candidate against the three-pair lookup and prepends any companion found, uncapped and additional, never competing for RG 111's own slot. Measured full blast radius (1583-9999, pre-change binary from git archive at 59fbda8 vs the fixed binary, 3,074,246 days each side, 14,627 differing days, all four predicted shapes, zero unclassified): 3,619 Holy Name fallback days (previous commit), 3,533 days Paul was wrongly excluded from Chair of St Peter's own day by a competing privileged feria, 593 days Chair of St Peter itself was admitted only as an ordinary commemoration with Paul entirely absent, and 6,882 days the new 30 June companion is added. The 3,533+593 figure supersedes an earlier, narrower 852-day estimate that measured only the delta between two older code commits, not the rule's full scope. The lectio differential needed no change: it does not compare commemorations at all, and this fix never touches season, slug, rank, or colour. The missalemeum oracle allow-list needed three changes: M12 removed (22 February 2027 no longer diverges in commemoration count), M15's date list gained 2027-02-22 (now reaching identity comparison for the first time, where it lands on that entry's own pre-existing, unrelated limit -- one of the two commemorations is temporal-origin and unnamed), and a new M19 for the 30 June gap. Mutation-tested, both halves separately: disabling the admit-level addition reddens the two new unit tests, the oracle's own M12-shaped checks, and an existing golden pin (updated to expect the Paul companion); removing only the 30 June data entry reddens solely the oracle's new M19 count, confirming the code and data halves are independently load-bearing.

data(ef): fix round 1 (F3) -- eusebius-confessor is white, not lectio's red

2026-08-12T16:26:01Z

data/ef/sanctoral.sexp bootstraps colour=red for this new entry (14 Aug), inherited from lectio's own ini; missalemeum's fixture independently tags it :r too -- two non-primary witnesses agreeing with each other, not with the Missal, the exact "trap" this project's own transcription-audit task already named once. Checked directly against the scan (missale-romanum-1962.pdf), not taken on a reviewer's transcription: the 14 August proper reads "S. Eusebii Conf. / Commemoratio / Missa Iustus, ut in festo S. Pauli primi Eremitae, die 15 ianuarii" -- Conf. (Confessor, not Martyr), borrowing the SAME Mass 15 January's own Paul the First Hermit uses, a Confessor's Common, white in both engines' own data for THAT entry. Every other Confessor/Abbot commemoration in lectio's own data is white (maur-abbot, giles, remigius, didacus, ubaldus, hilarion, sabbas, silvester, alexis); Eusebius Confessor is the one exception, with no textual support found for it. No behavioural impact today (Commemoration_only entries are never the printed observed colour under the current pipeline), fixed via the overlay mechanism since sanctoral.sexp is generated and the source is upstream. New test proves it through the real pipeline, the same discipline already applied to the subject retags.

data(ef): document why adjustments.sexp's directives survive the re-bootstrap

2026-08-12T15:49:24Z

Neither of adjustments.sexp's two directives is a no-op after the regeneration, and neither is removed -- reasoned through deliberately rather than deleted on sight, per Overlay.apply's own documented diagnostic behaviour (Edit has no "already correct" case; it unconditionally folds every field_edit over the current value when the slug is present, no diagnostic either way). `Edit most-holy-name-of-mary (Set_subject Bvm)`: the base bootstrap no longer needs this correction (the source dropped `class = lord` for this slug, so the default is already Subject.Saint), but the overlay still forces `Saint -> Bvm`. Kept for two reasons: data precision (the calendarium's "Sanctissimi Nominis Mariae" title still argues for Bvm over the generic Saint default, independent of what lectio's class field says) and as a regression guard (Set_subject is unconditional, so it would also correct a future re-introduction of `class = lord` for this slug, the one subject value RG16(a) behaviourally reads). `Suppress vigil-of-christmas`: re-verified, not assumed -- the slug is still present, unchanged, in both the regenerated source and the regenerated sanctoral.sexp, so the directive still fires its ordinary slug-present path. test_rite_ef.ml's own comment on the overlay-in-effect test previously claimed the base file carries `subject Lord` for most-holy-name-of-mary, which the regeneration made false; corrected in place rather than left stale, per this project's own discipline around wrong claims.

fix(rite-ef,kernel): follow the oracle on the Purification; admit reads the day's own Sunday-ness, not observed

2026-08-12T11:32:13Z

Fix round 1 review, two findings landed together because each golden pin's correctness depends on both. CRITICAL (item 1): reverts this branch's own first-pass retag of the Purification (2 February) from Lord back to Bvm -> Lord. The calendarium titles it 'B. Mariae Virg.', but missalemeum -- this project's designated EF oracle -- treats it as taking an occurring II-class Sunday's place outright, commemorations empty, exactly RG16(a)'s own festum Domini treatment (2020-02-02, 2014-02-02, independently fetched). Control, 2019-09-08 (the Nativity of the BVM, an ordinary Marian feast, on a Sunday): the Sunday observed, the feast merely commemorated -- the opposite pattern, proving the Purification's own oracle treatment is deliberate, not a gap. RG16(a) alone, on the untouched data, would have matched the oracle character for character; retagging Bvm is what moved colitur away from it on 1200 domain-wide days. The user has ruled: follow the oracle. Genuine primary-text counter-evidence (RG120(b), the colour rule grouping 2 February under 'B. Mariae Virg.', a category separate from 'Domini') is recorded in the register, not discarded -- a different project could reasonably rule the other way on the same evidence. most-holy-name-of-mary stays retagged Bvm; that one was never disputed. Removes the now-unneeded C12 lectio allow-list entry (data/ef/ expected-divergences.sexp, test_differential.ml): with the Purification Lord again, colitur matches lectio's own class = lord on every affected date, no divergence to allow-list. IMPORTANT (item 2): Precedence.rules.admit gains a ~temporal parameter -- a genuine kernel signature change, unlike RG16(a) itself. RG111(b)'s own Sunday rank floor ('one commemoration, namely of a II-class feast') used to be detected by reading observed's own slug for a Sunday marker, which silently assumed observed IS the day's temporal-cycle office. RG16(a) breaks that assumption on purpose: a Feast of the Lord standing in for an impeded Sunday 'cum omnibus iuribus et privilegiis' keeps the day a dominica II classis for RG111(b) too, even though the FEAST, not the Sunday, is observed. Before this fix an unrelated saint (Pope Sixtus II et al., 6 August, Class3) was wrongly admitted into the freed slot on every one of 1178 domain-wide days. Oracle-confirmed directly: 2023-08-06 (a Sunday) shows him displaced, commemorations empty; 2026-08-06 (an ordinary Thursday) shows him admitted -- being a Sunday is exactly what excludes him. admit now reads Sunday-ness off ~temporal (the day's own temporal-cycle candidate, passed through from Precedence.resolve unchanged) instead of observed. Validate's own admission fixed-point invariant updated to pass the same real temporal candidate through. Both golden pins in test_golden.ml were promoted from actual colitur day output without independently consulting the rubric or the oracle first -- a real defect the review caught. Re-derived from both before re-pinning: 2028-08-06 and 2025-02-02 now pin comms=[], no commemoration at all, matching missalemeum exactly in both cases.

data(ef): retag the Purification and Most Holy Name of Mary as BVM, not Lord

2026-08-12T10:17:27Z

Both entries carried (subject Lord) in data/ef/sanctoral.sexp, inherited unchecked from lectio's own class = lord field. The calendarium says otherwise: 2 February reads "IN PURIFICATIONE B. MARIAE VIRG." and 12 September reads "Sanctissimi Nominis Mariae" -- both name Mary, not the Lord, unlike the four genuine Lord entries' own "D. N. I. C." formula (Precious Blood, Transfiguration, Exaltation of the Holy Cross, Dedication of the Archbasilica of the Most Holy Saviour), all of which were checked against the same calendarium and left untouched. This matters together with RG16(a): applying the rule while the Purification was still mistagged Lord would have made it outrank an occurring II-class Sunday and then wrongly suppress that Sunday's own commemoration under RG16(a) too, the opposite of the intended fix. Retagged, the Purification no longer bands at RG91 entry 14, so the Sunday is observed and the Purification survives as its own ordinary commemoration. Corrected via a new data/ef/adjustments.sexp overlay (Set_subject Bvm), the same mechanism that file already uses to suppress vigil-of-christmas as a bootstrap duplicate, not a hand-edit of sanctoral.sexp itself: that file's own header asks for edits to go through the generator, and its SHA-256 provenance covers a byte-faithful mirror of lectio's INI. The Purification retag changes which day the lectio differential observes on 2 February whenever it falls on a Sunday (six years, 2005-2050); allow- listed as C12 in data/ef/expected-divergences.sexp, expected_rows derived independently (date -d -02-02 for each year in range), not transcribed from a comparator run.