lib-storage: Add \Noinferiors flag to INBOX when such namespace config is used.
lib-storage: Add \Noinferiors flag to INBOX when such namespace config is used.

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