fix #5015: executing resync as a locked operation #5018
Merged
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Description
Addresses the concern from #5015 by making resync a locked operation. It is safe to do this because all of the resync events will get queued, so it's not a blocking operation as long as the underlying executor is not direct. The only time the executor is backed by direct execution is for our internal informers, which do not use resync.
Type of change
test, version modification, documentation, etc.)
Checklist