mail_set_seq(): Don't open input stream immediately if message hasn't been saved yet.
mail_set_seq(): Don't open input stream immediately if message hasn't been saved yet.

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