The store-side empty-guard consumed the per-document intentional-clear flag
INSIDE the bounded retry loop. consumeIntentionalClear always deletes the
in-memory Map entry, but a tx rollback cannot un-delete it: attempt 1
consumed the flag then updatePage threw a transient error and rolled back;
attempt 2 re-read the page non-empty, saw the flag gone, and the empty-guard
silently BLOCKED the write — dropping the user's deliberate clear and
defeating the retry guarantee for clears.
Hoist the decision out of the loop (like consumeContributors /
consumeAgentTouched): consume once into `allowIntentionalClear` before the
`for`, and only read that boolean on the empty-over-non-empty branch. The
single hoisted consume still drops a pending flag for a non-empty store
(the "cleared then retyped" case), since every store consumes regardless of
incoming emptiness.
Add a regression test: arm via the real onStateless transport, updatePage
throws once then succeeds, assert it is called twice and the retry writes the
empty doc (the clear survives). It fails on the old consume-in-loop ordering
(updatePage called once) and passes after the hoist.
Document the known fail-safe limitation near the TTL constant: if document
ownership transfers / a node crashes between the stateless signal and the
debounced store, the in-memory flag is lost and the clear is silently not
applied (the doc reloads non-empty) — fail-safe, content is never destroyed.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
cce539e8e2