fix: reject restore_original when a standalone activity has no original options snapshot#11013
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This was referenced Jul 10, 2026
fretz12
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Jul 13, 2026
spkane31
merged commit Jul 13, 2026
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dandavison
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Implements Pause, Unpause, Reset, and UpdateActivityExecutionOptions RPCs for standalone CHASM activities. Adds matching frontend and history service handlers in chasm/lib/activity that dispatch to either the workflow-activity path or the standalone-activity path based on the presence of a workflow ID. Also adds PAUSE_REQUESTED and RESET_REQUESTED state machine states for standalone activities, the original_options snapshot for restore-on-reset semantics, the activity-options merge helpers (common/activityoptions), and the supporting proto schema changes (start_request_id, sdk_name, sdk_version, etc.). Squashed PRs: #9693 RPC boilerplate and code generation #9850 Implement UpdateActivityExecutionOptions #9851 Implement Pause/UnpauseActivityExecution for SAA #9852 Implement ResetActivityExecution for SAA #10001 Pause returns FailedPrecondition when already paused #10025 Validator function fixes #10265 Replace PauseState flag with PAUSE_REQUESTED state #10364 Add RESET_REQUESTED state to standalone activity #10745 Add support for updating start_delay via UpdateActivityOptions #10913 Preserve SAA retry backoff across unpause re-dispatch #10914 Fix SAA unpause for keep-paused reset #10917 Reject stale legacy SAA schedule-to-close timers #10920 Preserve NextRetryDelay across unrelated activity option updates #10921 Validate merged SAA retry policy updates #10923 Fix SAA reset attempt dispatch time reporting #11010 Use default retry policy when updating with nil #11020 Fix: de-duplicate pause even if activity is unpaused #11013 Fix: reject restore_original when a standalone activity has no original options snapshot #11032 Reject unsupported and empty update_mask paths in UpdateActivityExecutionOptions #11030 Fix: describe only provides heartbeat/failure when opted-in #11016 Preserve pending activity next retry delay #11068 Add SAA operator APIs to DC redirection whitelist #10954 Remove reset_heartbeats field in ResetActivityExecutionRequest #11087 Fix standalone activity heartbeat flag precedence #11117 Validation to reject negative activity jitter #11120 Fix bogus StartToCloseLatency for non-running standalone activities #11097 Fix task token invalidation after resetting an activity #11067 SAA bug fix: update start delay while paused #11123 SAA: cleanup
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What changed?
Added a guard that rejects UpdateOptions(restore_original=true) requests on a standalone activity when its OriginalOptions snapshot is missing.
Why?
A standalone activity started before OriginalOptions existed deserializes with
OriginalOptions == nil. Restoring such an activity previously succeeded silently, wiping TaskQueue and both close/start timeouts, leaving the activity in an invalid configuration.How did you test it?
Potential risks
None, this feature has not been rolled out.