Salvaged from PR #90734 by @Kyzcreig onto current main:
- hermes_state_search.py: post-commit FTS incremental merge failures
(including the bare SystemError CPython's sqlite3 layer raises under
cross-thread errmsg scrambling) are contained and logged instead of
escaping and making the caller replay an ambiguous, possibly-durable
write (exactly-once refinement by @yuzilongleif-collab).
- tests/state/test_writer_conn_thread_safety.py: live reader/writer race
hammer + AST sweep freezing the no-unlocked-writer-conn invariant.
On top: the sweep now also flags self._conn PASSED to helpers, which
caught one more live site on main — get_session_delete_targets handed
the shared writer connection to _collect_delegate_child_ids inside a
_read_ctx block, executing on it without self._lock. Routed to the
borrowed read connection.
Co-authored-by: Kyzcreig <9063726+Kyzcreig@users.noreply.github.com>
Co-authored-by: yuzilongleif-collab <235949691+yuzilongleif-collab@users.noreply.github.com>
Teknium
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