docs: accept #309 as a standing divergence rather than a planned fix (AP-136)

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User decision 2026-08-06. #309 moves from OPEN to DEFERRED/ACCEPTED, and
AP-136 becomes its permanent record rather than a staging note. No code
changes.

No new register row was filed: AP-136 already carries the full retail
mechanism (SetPositionInternal 0x00515BD0 -> store_position 0x00515CE2 ->
GotoLostCell 0x00515CF2, removed only by InitObjCell 0x00508260 ->
reenter_visibility 0x00516250), the exact divergence, and the observable.
Filing a second row would have duplicated it.

WHY DEFERRED, recorded so a successor does not silently re-litigate it. The
retail-faithful end state is a park that SURVIVES cancellation. That was
implemented and reverted this round, because it costs (a) reversing a
deliberate shipped invariant —
NewerPositionPickupAndParentEachCancelExactLostOperation asserts that a newer
Position cancels the park — and (b) GameRuntime teardown convergence (stage
10), where surviving parks never converge on shutdown. The observable
requires a remote to teleport into a non-resident landblock AND then stop
moving; ACE stops broadcasting for a stationary entity, while the ordinary
5-10 Hz case is superseded within ~150 ms. Revisit if teardown convergence is
done for another reason, or if the observable is reported in ordinary play.

CAUGHT WHILE RECORDING IT: deferring the fix does NOT cancel AP-136's
six-step connected check. That check validates the SHIPPED rollback path
(#312 / restorableOnCancel, which sits in SubmitPreparedPlacementCore — the
shared core behind every production placement), not the deferred fix. It
still needs running with ACDREAM_PROBE_PARK=1, and therefore must run BEFORE
C5c's probe strip retires that flag. Both documents now say so; without that
note the strip would have silently removed the instrumentation a still-owed
gate depends on.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

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Erik 2026-08-06 07:49:20 +02:00

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