无法使用带有 422 的 gogithub 创建提交 更新不是快进

我使用以下函数在一个使用go-github库的分支中创建一个新的提交

func GHAPICreateCommit(ctx context.Context, client *github.Client, commitOpts *CommitOptions) error {
    // Get the reference of the branch
    ref, _, err := client.Git.GetRef(ctx, repoOwner, commitOpts.Repo, "refs/heads/"+commitOpts.Branch)
    if err != nil {
        return err
    }
    commit, _, err := client.Git.GetCommit(ctx, repoOwner, commitOpts.Repo, *ref.Object.SHA)
    if err != nil {
        return err
    }

    commit.Message = github.String(commitOpts.CommitMessage)

    // Create a new commit with the updated commit message
    newCommit, _, err := client.Git.CreateCommit(ctx, repoOwner, commitOpts.Repo, commit)
    if err != nil {
        return err
    }
    // Attach the new commit to the reference
    ref.Object.SHA = newCommit.SHA

    // Update the branch reference to point to the new commit
    _, _, err = client.Git.UpdateRef(ctx, repoOwner, commitOpts.Repo, ref, false)
    if err != nil {
        return err
    }

    return nil
}

由于以下原因，此操作失败:

PATCH https://api.github.com/repos/MyOrg/myrepo/git/refs/heads/the-branch-I-am-creating-the-new-commit-to: 422 Update is not a fast forward []

为什么不是快进呢？它只是从现有分支/提交创建的新提交.

PS:我EXPLICITLY DO NOT想在提交时创建新文件.