[12.0] Fix missing rollback on retried jobs #311
Merged
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When RetryableJobError was raised, any change done by the job was not
rollbacked.
Using raise would throw the exception up to the core and rollback, but
we would have a stack trace in the logs for each try. Calling rollback
manually (rollback also clears the env) hide the tracebacks, however,
when the last try fails, the full traceback is still shown in the logs.
Fixes #261