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

[e-frog]

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