LSP server ignores client capabilities resolveSupport and dataSupport

[dvaembit]

My LSP client is sending codeAction.dataSupport: false and codeAction.resolveSupport: { properties: [] } in it's client capabilities. However the code actions offered by OmniSharp still include incomplete code actions that require resolution. For example:

{
  "jsonrpc": "2.0",
  "id": 4,
  "result": [
    {
      "title": "Remove unnecessary usings",
      "kind": "quickfix",
      "diagnostics": [],
      "data": {
        "Uri": "...",
        "Identifier": "Remove unnecessary usings",
        "Name": "Remove unnecessary usings",
        "Range": {
          "Start": {
            "Line": 13,
            "Character": 0
          },
          "End": {
            "Line": 13,
            "Character": 16
          }
        },
        "$$__handler_id__$$": "634ad2b9-ebc1-4f2c-8c33-42ff2434f8aa"
      }
    }
  ]
}

I would expect this code action to either be omitted from the code action list or to include the edit or command fields.