I’ve run into this minor inconsistency in the GitHub GraphQL API v4. Consider the following query:

query {
  repository(owner:"octocat", name:"Hello-World") {
    allIssues: issues {
      totalCount
    }
    allPRs: pullRequests {
      totalCount
    }
    issues (states:[]) {
      totalCount
    }
    pullRequests (states:[]) {
      totalCount
    }
  }
}
{

"data": {

"repository": {

"allIssues": {

"totalCount": 250

},

"allPRs": {

"totalCount": 249

},

"issues": {

"totalCount": 0

},

"pullRequests": {

"totalCount": 249

}

}

}

}

Notice that states:[] filters out all issues, but includes all PRs.

This is a minor inconsistency. It’d be better if providing states:[] had the same effect on issues and PRs.