$ git clone -n https://src.fedoraproject.org/rpms/golang-github-xanzy-gitlab.git /var/lib/mock/f38-build-side-42-init-devel-648759-26451/root/chroot_tmpdir/scmroot/golang-github-xanzy-gitlab
Cloning into '/var/lib/mock/f38-build-side-42-init-devel-648759-26451/root/chroot_tmpdir/scmroot/golang-github-xanzy-gitlab'...
$ git fetch origin d4ea84f3d98d07e5ac6cfa3d547a0fd0375078d4:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/golang-github-xanzy-gitlab
 * [new ref]         d4ea84f3d98d07e5ac6cfa3d547a0fd0375078d4 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at d4ea84f Update to 0.81.0 - Closes rhbz#2168713