Two provider-level bugs in the managed-event data path:
- queryManagedEvents and applyManagedCalendarReminders matched every event in
the calendar (UID_2445 IS NOT NULL / no filter). A stray user event there
(e.g. an .ics import) was treated as 'existing but not desired' and deleted,
or had its own reminders wiped and all-day-re-encoded. Both now match only
our own mirror events (the 'contact-' UID prefix).
- All-day reminder offsets were sampled at the event's DTSTART, which for a
year-less birthday is the 1972 leap anchor — a year whose timezone offset
(pre-DST) differs from today's, skewing every modern occurrence by up to an
hour. The offset is now sampled at the upcoming occurrence (nextYearlyOccurrence),
leaving only the inherent ±1h DST drift.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
Jean-Luc Makiola
8881559e67