nocturnReadingIds unconditionally pooled the plain temporal-cycle and
month-week reading ids into every day's nocturn-reading pool, even when
a real feast wins the day outright with zero commemorations
(decideOccurrence's `ordinary-feria` branch, which correctly suppresses
the temporal identity entirely). St. Bartholomew (duplex-2-classis,
2026-08-24, a Monday) has no Nocturn 3 content of his own, so the
leftover 13th-Sunday-after-Pentecost and month-week readings wrongly
filled his Nocturn 3.
Gate the pooling on whether the day's own occurrence decision actually
retained the temporal identity (day.winner.kind === 'temporal', or a
`temporal`-kind entry in day.commemorations) — mirrors getDayCollects's
existing pattern for the same question.
Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01F25189JqjXddUhU9hM9nUS
will
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