ErrEmptyUploadPackRequest when performing Pull with no changes

[skyflyer]

I'm getting error on Pull: ErrEmptyUploadPackRequest (empty git-upload-pack given)

I'm calling it like this: err = r.Pull(&git.PullOptions{RemoteName: remotes[0].Config().Name}) where remotes, err := r.Remotes() and r is *git.Repository;

I'm testing this with a master branch (commit c5f1056). Should I be adding something to the PullOptions struct?

Note that I am getting this error only when there are no updates; if there are updates in the repo, all is fine. Even if changes are on some branch.

I added a github remote and can not replicate this using github repository, so I'm sharing the details of a private git repository with @mcuadros via email.

[skyflyer]

Reproduction code:

func main() {
	r, err := git.NewFilesystemRepository(gitdir)
	check(err)

	remotes, err := r.Remotes()
	check(err)
	if len(remotes) == 0 {
		cloneRepository(r, conf)
	} else {
		updateRepository(r)
	}
}

func cloneRepository(r *git.Repository, conf conf) {
	log.Printf("Cloning %s...\r\n", conf.Repo)
	err := r.Clone(&git.CloneOptions{URL: conf.Repo})
	check(err)
}

func updateRepository(r *git.Repository) {
	remotes, err := r.Remotes()
	check(err)

	log.Printf("Pulling from %s...\r\n", remotes[0].Config().Name)
	err = r.Pull(&git.PullOptions{RemoteName: remotes[0].Config().Name})
	softCheck(err)
}