Type, description and documentation is ignored when mounting class inside route_param

[4ndv]

Example:

class MyApi < Grape::API
  route_param :account_id, type: String, desc: 'id of account', documentation: { desc: 'another-desc' } do
    mount AccountsApi

    get '/another-list' do
      []
    end
  end

  add_swagger_documentation
end

class AccountsApi < Grape::API
  get '/list' do
    []
  end
end

Resulting documentation:

"/{account_id}/list": {
  "get": {
    "parameters": [
      {
        "in": "path",
        "name": "account_id",
        "type": "integer",
        "format": "int32",
        "required": true
      }
    ],
  }
},
"/{account_id}/another-list": {
  "get": {
    "parameters": [
      {
        "in": "path",
        "name": "account_id",
        "type": "string",
        "required": true
      }
    ],
  }
}

• For account_id param of /list type is incorrect, description and documentation is ignored
• For account_id param of /another-list type is correct, but description and documentation is still ignored