imap: If FETCH fails because mail has already been expunged, don't log an error.
imap: If FETCH fails because mail has already been expunged, don't log an error.

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