Functional API: crash recovery can replay stale downstream result after upstream task retry (SQLite/SIGKILL)
Public issue #9546 in langchain-ai/langgraph. The source issue contains the full report and discussion.
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Reported problem
The record contains the title “Functional API: crash recovery can replay stale downstream result after upstream task retry (SQLite/SIGKILL)” but no substantive source summary.
Frequency & alternatives
Recent records to compare: “MimiModel.encode: last frame differs from kyutai's encoder when the input length is not a multiple of 1920 samples” (GitHub Issues, Nov 5, 2026); “[问与答] iOS 从什么时候开始放弃长按拖动光标的？” (V2EX, Nov 5, 2026). Shared themes are navigation hints; they have not been verified as the same need or independent corroboration.
Demand hypothesis
Treat the reported task or obstacle as an interview lead. A feature request, complaint or search for alternatives does not by itself identify a budget owner or willingness to pay.
Commercial evidence gaps
Missing evidence: distinct affected users, repeated occasions, current workaround, measured time or money cost, purchasing authority and a response to a concrete offer.
Validation decision
Group original reports by the same task and deduplicate authors and reposts. Ask how the task is handled today and what it costs; test a defined offer before claiming paid demand.