plugins/github/resources/graphql/query/pullRequestCommits.graphql

query($repoOwner: String!, $repoName: String!, $number: Int!, $pageSize: Int = 100, $cursor: String) {
    repository(owner: $repoOwner, name: $repoName) {
        pullRequest(number: $number) {
            commits(first: $pageSize, after: $cursor) {
                pageInfo {
                    ...pageInfo
                }
                nodes {
                    ...nodeInfo
                    commit {
                        ...commit
                    }
                }
            }
        }
    }
}