Quota calculation with MySQL backend and replication.

Hello!

Over the weekend I converted our Dovecot server from Maildir quota to MySQL backed quota and then provisioned a fresh replica server and seeded it via Dovecot replication.

This morning most mailboxes were over quota, reporting twice the actual usage. I'm fairly certain it's the effect of having sql backed quota with both Dovecot servers using the same database.

Can anyone tell me if this is a one-off problem stemming from replicating the 2nd server from scratch or should I be aware of other quirks concerning sql backed quota and replication?

Thanks a bunch! Reio