BUG11825: firewall: Renaming a network/host group doesn't update rules
Code only changed field 6 of hash (target group) and not field 4 (source group).
Also if using geoip it was only field 4 of hash (source group) and not field 6 of hash (target group)
Added new code that changes both fields to reflect the change in the firewallrules immediately.
fixes: #11825
Signed-off-by: Alexander Marx <alexander.marx@ipfire.org> Signed-off-by: Michael Tremer <michael.tremer@ipfire.org>