The review found a race between the background advice thread and the
brewer correcting a reading.
`set_reading_advice` wrote unconditionally by id. The advice is
generated in the background, so if the brewer corrects a reading while
the advice for the OLD gravity is still being generated, the slow thread
lands afterwards and overwrites the fresh advice with advice about a
reading that no longer exists. The reading ends up with the final
gravity from the correction and the advice from before it.
Reproduced against the live database:
wrote advice for 1050
wrote advice for 1020
late stale write matched: 0
final sg: 1020 | final advice: 'ADVICE FOR THE CORRECTION'
The write is now conditional on the reading still holding the gravity
the advice was generated for, so a late thread matches nothing.
Also
----
`finish_reason` is now checked. A reply that stopped at the token
ceiling is incomplete - it may be advice that stops mid-sentence - and
it was being stored as if it were the whole answer. It is now marked
as cut off.
173 tests (up from 171).
hermes
3e1e4f42b7