morpheus-graphql-0.12.0: test/Feature/Holistic/selection/subscription/singleTopLevelField/fail/response.json

{
  "errors": [
    {
      "message": "Subscription \"SomeTestSubscription\" must select only one top level field.",
      "locations": [
        {
          "line": 5,
          "column": 3
        }
      ]
    }
  ]
}