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fix: update message answer on completion after resume from pause

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When a ChatFlow workflow pauses (e.g., Human Input node) after a Question
Classifier or Condition Branch, the message is saved with PAUSED status
and empty answer. On resume and completion, _handle_advanced_chat_message_
end_event skipped saving the final state because _message_saved_on_pause
was True, leaving the message stuck with PAUSED status and no answer.

The fix removes the guard so _save_message is always called on completion.
_save_message updates the existing message in-place (it does a SELECT by
message_id), overwriting the stale PAUSED snapshot with the final
answer and NORMAL status.

Fixes #38614
This commit is contained in:
EvanYao826 2026-07-10 20:47:22 +08:00
parent 12c06a61be
commit 2551ee2d8b
1 changed files with 5 additions and 4 deletions
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9
api/core/app/apps/advanced_chat/generate_task_pipeline.py
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@ -807,10 +807,11 @@ class AdvancedChatAppGenerateTaskPipeline(GraphRuntimeStateSupport):
reason=QueueMessageReplaceEvent.MessageReplaceReason.OUTPUT_MODERATION,
)
# Save message unless it has already been persisted on pause.
if not self._message_saved_on_pause:
with self._database_session() as session:
self._save_message(session=session, graph_runtime_state=resolved_state)
# Always save the final message state, even if it was already
# persisted on pause. The previous snapshot (PAUSED status, empty
# answer) must be replaced with the completed answer.
with self._database_session() as session:
self._save_message(session=session, graph_runtime_state=resolved_state)
yield self._message_end_to_stream_response()