[BlueOnyx:16359] New dovecot version problem?

[Maurice de Laat]

Hi list,

Since the new dovecot version (2.2.15) is active, every now and then I 
see errors like these:

Oct 31 22:10:53 arie dovecot: imap(maurice): Error: Corrupted index 
cache file /home/.sites/xxx/mail/.imap/INBOX/dovecot.index.cache: Broken 
physical size for mail UID 131666
Oct 31 22:10:53 arie dovecot: imap(xxxx): Error: read(mbox) failed: 
Cached message size smaller than expected (1397 < 1407, box=INBOX, 
UID=131666, cached Message-Id=<xxxx>)
Oct 31 22:10:53 arie dovecot: imap(xxxx): Error: copy: 
i_stream_read(mbox) failed: Cached message size smaller than expected 
(1397 < 1407, box=INBOX, UID=131666, cached Message-Id=<xxxx>)

There are some references to this error, but only for older dovecot 
versions, and they seem to point to zlib, which according to doveconf -n 
is not active on 5108R.

Does anyone else see these problems?
Thanks
-- 
Maurice