[BUG] Incorrect generated schema for RequestReviewsPayload

The following query throws an error against GitHub’s GraphQL API (this was tested using the explorer as authenticated user).

utation {
  requestReviews(input:{
    pullRequestId:"MDExOlB1bGxSZXF1ZXN0NjU3ODM0NDI4",
    userIds:["MDQ6VXNlcjE5OTUxMTcx", "MDQ6VXNlcjE2NjY3Mjgx"]
  }) {
    actor {
      ... on User {
        id name login
      }
    }
    pullRequest {
      title
    }
    requestedReviewersEdge {
      cursor
      node {
        id name login
      }
    }
  }
}

The response contains the following error identifier: EBF0:44F4:3EB698:BABEB7:60B8EBF2

The reason I tried this request is because I saw the payload contains the following:

"""
The edge from the pull request to the requested reviewers.
"""
requestedReviewersEdge: UserEdge

However, the input allows multiple reviewers at a time and the edge output is singular.

Removing the requestedReviewersEdge provides a non-error response. However, the reviewers aren’t actually updated. The payload’s schema does not contain an errors field that could tell me those users are not contributors to the repository.