Github user arunmahadevan commented on the issue:
https://github.com/apache/storm/pull/939
@kosii Thanks for reporting. Yes the keys in `pendingPrepare` should have
priority. Typically this case does not happen since when a prepare fails, the
txn is rolled-back and retried (i.e a fresh prepare).
Do you want to post a JIRA/Patch?
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