Neutron plugin v3 doesn't show remote_ip_prefix 0/0

Neutron plugin v3 doesn't show the value of the remote_ip_prefix when it is set to 0/0 while the neutron base reference shows it.

Moreover, this causes troubles to terraform for instance since it checks the security group it created has been created. When terraform creates a rule 0/0, its check fails since the remote_ip_prefix is not show.

================================================================================
The current behavior:

[cloud:~/devstack] master* 2 ± neutron security-group-rule-create sg1
Created a new security_group_rule:
+-------------------+--------------------------------------+
| Field | Value |
+-------------------+--------------------------------------+
| direction | ingress |
| ethertype | IPv4 |
| id | 0649a689-677f-4ff5-894a-db2ba2727b11 |
| port_range_max | |
| port_range_min | |
| protocol | |
| remote_group_id | |
| remote_ip_prefix | |
| security_group_id | 62484538-1fb5-40d0-a0bf-369f6d60dab2 |
| tenant_id | e29c641486fc401ca356b72d84a9f072 |
+-------------------+--------------------------------------+
[cloud:~/devstack] master* ± neutron security-group-rule-create sg1 --remote-ip-prefix 0.0.0.0/0
Created a new security_group_rule:
+-------------------+--------------------------------------+
| Field | Value |
+-------------------+--------------------------------------+
| direction | ingress |
| ethertype | IPv4 |
| id | c03f35b9-1271-41da-91d6-94e682915b19 |
| port_range_max | |
| port_range_min | |
| protocol | |
| remote_group_id | |
| remote_ip_prefix | |
| security_group_id | 62484538-1fb5-40d0-a0bf-369f6d60dab2 |
| tenant_id | e29c641486fc401ca356b72d84a9f072 |
+-------------------+--------------------------------------+

================================================================================
The neutron base reference behavior

[cloud:~/devstack] master* 2s ± neutron security-group-rule-create sg1 --remote-ip-prefix 0.0.0.0/0
Created a new security_group_rule:
+-------------------+--------------------------------------+
| Field | Value |
+-------------------+--------------------------------------+
| direction | ingress |
| ethertype | IPv4 |
| id | 99238176-3010-4671-9162-55b8ceee59c8 |
| port_range_max | |
| port_range_min | |
| protocol | |
| remote_group_id | |
| remote_ip_prefix | 0.0.0.0/0 |
| security_group_id | 62484538-1fb5-40d0-a0bf-369f6d60dab2 |
| tenant_id | e29c641486fc401ca356b72d84a9f072 |
+-------------------+--------------------------------------+
[cloud:~/devstack] master* 2s ± neutron security-group-rule-create sg1
Created a new security_group_rule:
+-------------------+--------------------------------------+
| Field | Value |
+-------------------+--------------------------------------+
| direction | ingress |
| ethertype | IPv4 |
| id | 66edfcfb-2975-4fb9-98f1-b94f4d8dbc1a |
| port_range_max | |
| port_range_min | |
| protocol | |
| remote_group_id | |
| remote_ip_prefix | |
| security_group_id | 62484538-1fb5-40d0-a0bf-369f6d60dab2 |
| tenant_id | e29c641486fc401ca356b72d84a9f072 |
+-------------------+--------------------------------------+