lib: connection API was unnecessarily delaying client_connected() calls for UNIX sockets.
lib: connection API was unnecessarily delaying client_connected() calls for UNIX sockets.

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