Hi Timo.
I'm doing some testing with yesterday's CVS code and believe I've found a bug.
In SquirrelMail, I get 5 messages in INBOX (doesn't matter how). I click "Toggle All" then "Delete". All 5 messages move to Trash.
The Trash folder gets a link "expunge". I click that and get the following error:
ERROR : Bad or malformed request. Query:STORE 1:6 +FLAGS (\Deleted) Server responded: Error in IMAP command STORE: Invalid messageset
There are 5 messages in Trash, not 6.
After this error is displayed, I see the following in syslog:
May 2 09:37:24 dev3 dovecot: IMAP(jtest): Fixed index file /var/mailstore/72/af/375887/Maildir/.Trash/dovecot.index: first_recent_uid_lowwater 10 -> 9
(this might not actually be the right message for the error, but it's always first_recent_uid_lowwater getting decremented by 1)
If I hit refresh in the browser, I can then click Expunge without issue once first_recent_uid_lowwater is fixed.
I am able to replicate this easily in NFS, GFS (cluster) and local disk.
Steve