[Dovecot] dovecot 2.0: * BAD Internal quota calculation error

Hello,

I'm seeing * BAD Internal quota calculation error's with dovecot 2.0. It doesn't happen always but quite frequently.

Here is an example imap traffic:

24 select "Drafts" 25 getquotaroot "Drafts"

• OK [CLOSED] Previous mailbox closed.
• FLAGS (\Answered \Flagged \Deleted \Seen \Draft)
• OK [PERMANENTFLAGS (\Answered \Flagged \Deleted \Seen \Draft \*)] Flags permitted.
• 1 EXISTS
• 0 RECENT
• OK [UIDVALIDITY 1239455951] UIDs valid
• OK [UIDNEXT 5] Predicted next UID
• OK [HIGHESTMODSEQ 11] Highest 24 OK [READ-WRITE] Select completed.
• QUOTAROOT "Drafts" "user"
• QUOTA "user" ()
• BAD Internal quota calculation error 25 OK Getquotaroot completed.

Reverting the following change fixes the issue

http://hg.dovecot.org/dovecot-2.0/rev/50a0c05fb4e7

Thanks, e-frog