Fixed "duplicate transaction log sequence" errors when we noticed that log file was recreated while we were trying to create it ourself.
Fixed "duplicate transaction log sequence" errors when we noticed that log
file was recreated while we were trying to create it ourself.

--HG--
branch : HEAD

jwm/dovecot-notmuch,jwm/dovecot-notmuch,jkerihuel/dovecot,jwm/dovecot-notmuch,jkerihuel/dovecot,jwm/dovecot-notmuch,jkerihuel/dovecot,jkerihuel/dovecot,jkerihuel/dovecot,jwm/dovecot-notmuch