dsync: Fixed handling expunges of last message when it didn't have a known GUID.
dsync: Fixed handling expunges of last message when it didn't have a known GUID.

LTD-Beget/dovecot,LTD-Beget/dovecot,LTD-Beget/dovecot,LTD-Beget/dovecot,LTD-Beget/dovecot