GraphQL for PR 'Something went wrong'

Hi!
I am trying to get this PR by graphQL API.
https://github.com/R-Vision/r-vision/pull/6492

Query is here:

{"query":"query {
  repository(owner:\"R-Vision\", name: \"r-vision\") {
    pullRequest(number: 6492) {
      id
      author {
        login
      }
      baseRefName
      changedFiles
      headRefName
      mergeStateStatus
      mergeable
      number
      permalink
      state
      title
      files(first: 100) {
        totalCount
        edges {
          cursor
          node {
            path
          }
        }
        pageInfo {
          endCursor
          hasNextPage
        }
      }
      reviewRequests(first: 5) {
        nodes {
          requestedReviewer {
            ... on User {
              login
            }
          }
        }
      }
      reviews(first: 100) {
        nodes {
          state
          author {
            login
          }
        }
      }
    }
  }
}
"}

For other PRs the query works correctly, but for 6492 there is an error:

"message": "Something went wrong while executing your query. Please include `D262:32267:6E054:8556C:5D36C832` when reporting this issue."

Thanks for being here!, I think the best way to get you support here will be via private support, If you haven’t already, please contact us at https://github.com/contact with the info so we can look into that further.