Now errors with path set to null can be normalized

[wuarmin]

Hello, I'm consuming a GraphQL-interface, which returns error-payloads like that:

{
      "data": null,
      "errors": [
        {
          "message": "error",
          "path": null
        }
      ]
}

This caused a NoMethodError: undefined method `each' for nil:NilClass This PR would fix the behavior.

thx and best regards

[wuarmin]

Hello! @jhawthorn a merge of this change would help me a lot!

thx and best regards

[tom-beck]

I hit this issue and was about to make a PR. Thanks @wuarmin.

Are there any planned releases?

[wuarmin]

Are there any planned releases?

That would be great! @jhawthorn @rmosolgo

[natematykiewicz]

This would also help me