incorrect format of a reply from control agent when command is not allowed

When we are communicating with Kea or CA using http or https json reply is send as list, eg: cmd:

{'arguments': {}, 'command': 'config-get'}

reply:

[
  {
    "arguments": {
      "Control-agent": {
        ....
      }
    },
    "result": 0
  }
]

also when reporting error eg:

{'arguments': {'Control-agent': {...},
 'command': 'config-set'}

reply:

[
  {
    "result": 1,
    "text": "some libraries are still opened"
  }
]

but when command is rejected via RBAC hook it's sending just dict:

{'arguments': {}, 'command': 'status-get'}

reply:

{
  "result": 403,
  "text": "Forbidden"
}

which is inconsistent with all other messages, making management via script not very pleasant.