Found walking the live rig, which is the only place it could be found: every unit
test and the settings screen itself send every row, so the bug was invisible to
both.
`PUT /auth/me/notifications/teams` documents itself as replacing the whole set. It
did not — it wrote the entries it was given and left every other preference
standing. So `{"teams": []}` cleared nothing, which is precisely the body the route
requires the array for: the field is mandatory even when empty so that clearing
everything is expressible, and it was the one thing that did not work.
A Team the caller could have named and did not now returns to its defaults. RESET
rather than deleted, and the difference is `last_digest_at`: that column is the
digest worker's state and not a preference, so dropping the row with it would make
every visit to the settings screen re-open a day-wide digest window and mail
somebody a summary they had already read.
Walked again after the fix on the real database: the empty set clears, an entry
naming a Team the caller is not in is still dropped, and the digest stamp survives.
Co-Authored-By: Claude <noreply@anthropic.com>
wtclaude
13312d7fc3