Farm vet on mirror running unnecessarily during initial sync

Issue Summary

During initial sync, farm vet tries to fix git content inconsistency even though repository is already in sync.

Steps to Reproduce

1. Start Bitbucket primary and authorize a mirror (stand-alone or farm) to connect to it.
2. Create a project and a repository inside it.
3. Push some content to repository
4. Add this project on mirror and wait for it to finish syncing.
5. Shut down mirror
6. Push another commit to the same repository
7. Restart mirror with debug logging enabled.
8. Wait for mirror to be in SYNCHRONIZED state.
9. Search for logs containing "Detected content inconsistency in repository"

Expected Results

There should be no such logs as no new content has been pushed for that repository during mirror startup.

Actual Results

Following lines were noticed in logs which shows that even after initial sync was complete farm vet though content is inconsistent and ran snapshot sync.

2020-07-28 11:38:37,440 INFO  [initial-sync-queue-poller:thread-1]  c.a.b.i.m.m.f.s.InitialSyncHelper Initial Synchronization for [20] complete
2020-07-28 11:38:37,441 INFO  [initial-sync-queue-poller:thread-1]  c.a.b.i.m.m.f.s.InitialSyncHelper Repository synchronization complete. Running farm vet
2020-07-28 11:38:37,441 DEBUG [initial-sync-queue-poller:thread-1]  c.a.b.i.m.mirror.vet.DefaultFarmVet Running farm vet
2020-07-28 11:38:37,566 DEBUG [initial-sync-queue-poller:thread-1]  c.a.b.i.m.mirror.vet.VetContext Detected content inconsistency in repository: [20], repairing 

Workaround

Currently there is no known workaround for this behaviour. A workaround will be added here when available.