If uidlist isn't version 3, we have to recreate it instead of appending.
If uidlist isn't version 3, we have to recreate it instead of appending.

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