The removal of interfaces loopback lo results in all address removed from the loopback interface. (also not cli controlled addresses)
in this process 127.0.0.1/8 and ::1/128 are also removed witch results in error for services that are dependent on these adresses, this includes eg. snmp and ssh
removal of these addresses needs to be disallowed by the config backend and removal of the whole config block interfaces loopback lo needs to result in removal of all non-default addresses only.