remote-network4-set accept empty name

{
  "arguments": {
    "remote": {
      "type": "mysql"
    },
    "server-tags": [
      "abc"
    ],
    "shared-networks": [
      {
        "name": "",
        "interface": "enp0s9",
        "subnet4": [
          {
            "interface": "enp0s9",
            "pools": [
              {
                "pool": "192.168.52.1-192.168.52.100"
              }
            ],
            "subnet": "192.168.52.0/24"
          }
        ]
      }
    ]
  },
  "command": "remote-network4-set"
}

result:

{
  "arguments": {
    "shared-networks": [
      {
        "name": ""
      }
    ]
  },
  "result": 0,
  "text": "IPv4 shared network successfully set."
}

mysql> select * from dhcp4_shared_network;
+----+------+--------------+-----------+-----------------+---------------------+--------------+-------+-------------+------------------------+------------------+--------------+----------------+
| id | name | client_class | interface | match_client_id | modification_ts     | rebind_timer | relay | renew_timer | require_client_classes | reservation_mode | user_context | valid_lifetime |
+----+------+--------------+-----------+-----------------+---------------------+--------------+-------+-------------+------------------------+------------------+--------------+----------------+
|  1 |      | NULL         | enp0s9    |               1 | 2019-02-21 05:40:02 |         NULL | NULL  |        NULL | [  ]                   |                3 | NULL         |           NULL |
+----+------+--------------+-----------+-----------------+---------------------+--------------+-------+-------------+------------------------+------------------+--------------+----------------+
1 row in set (0.00 sec)

interesting fact is that after kea restart (to force merging config) kea logs:

[kea-dhcp4.dhcp4/20684] DHCP4_OPEN_CONFIG_DB Opening configuration database: name=keadb password=***** type=mysql user=keauser
[kea-dhcp4.dhcp4/20684] DHCP4_CONFIG_FETCH Fetching configuration data from config backends.
[kea-dhcp4.dhcp4/20684] DHCP4_CONFIG_MERGED Configuration backend data has been merged.

So it looks like it was accepted, so I checked running configuration using config-get and this is what I found:

      "shared-networks": [
        {
          "authoritative": false,
          "interface": "enp0s9",
          "match-client-id": true,
          "option-data": [],
          "relay": {
            "ip-addresses": []
          },
          "reservation-mode": "all",
          "subnet4": []
        }
      ],

so:

1. kea accepted empty name
2. remote-network4-set command doesn't save subnet in the database (probably another issue should be opened for this)

Also I re-run test for shared-network empty name in JSON configuration file and there kea complain about empty name parameter and fail to start.