Shipped defect in route 2 (9966b531), found while reviewing route 4a.
`InboundPhysicsStateController.TryApplyPosition` built its AcceptedPhysicsTimestamps
via `Current(gate, teleportAdvanced: ...)`, omitting `previousTeleport`, which
defaulted to a literal 0. The only site that populated it was the deferred
initial-create path — which is why the continuation executor was correct and
every newer consumer was not.
Consequence in shipped code: route 2 feeds this into
`ValidAcceptedAuthority`, which requires Previous == Accepted for a
ForcePosition. Any local player whose TELEPORT_TS is nonzero — anyone who has
portalled or recalled this session — had the authority rejected and the force
correction SILENTLY DROPPED. The user's @pklite acceptance was genuine but
narrow: that character had not teleported, so the stamp was still 0.
Second latent consequence: with an accepted stamp >= 0x8000, wrap-safe
TeleportRegressed also fires against the 0 and rejects ordinary Apply positions,
not just ForcePosition.
The fix captures `previousTeleport = gate.TeleportTimestamp` BEFORE
`TryAcceptPositionEvent` mutates it, matching the shape the deferred path
already used. Ordering is the whole point: capturing after would make
Previous == Accepted unconditionally, so ValidAcceptedAuthority's check would
pass vacuously — the symptom would disappear while the semantics broke.
Also removes the footgun that allowed it. `Current`'s parameter is now
`ushort? previousTeleport = null` resolving to `gate.TeleportTimestamp`, so the
eleven non-Position channels — none of which can move TELEPORT_TS — get
"previous == current" by omission rather than a literal 0 that is
indistinguishable from a genuine "never teleported".
Consumer audit: only TryApplyPosition was defective. The two route-2 call sites
trace back to it; the RuntimeEntityObjectLifetime sites source from
TryAcceptDeferredPosition and were already correct.
Tests discrimination-verified by reverting the argument to 0: the stamp test
fails Expected 10 / Actual 0, and the classifier test fails Expected
SetPositionSimple / Actual RejectedAuthority — the shipped defect reproduced
exactly.
Gates: complete Release solution 10,935 passed / 4 skipped / 0 failed.
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
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