[Dovecot] possible quota bug ?

[fernando.figaro at uol.com.br]

Hi,
 
I'm using dovecot 2.2.5 with quota (maildir backend), zlib and expunge plugins. 
 
When I list maildirsize file, I get:
 
1073741824S
17952 16
 
If I receive a new message (example: 1204 bytes compressed and 2524 bytes plain text), the quota file is write correctly (2524 1 entry). When I move the message to trash folder (or between user custom folders) the file have wrong entries:
 
1073741824S
17952 16
2524 1
1204 1 (this is the size of the compressed message)
-2524 -1
 
I coudn't find any relation with the config settings causing this problem and checked the changelog since 2.2.5. Had someone had this same problem?
 
Thanks,
Fernando