$ git clone -n https://src.fedoraproject.org/rpms/golang-github-containerd-stargz-snapshotter.git /var/lib/mock/f42-build-3357701-45030/root/chroot_tmpdir/scmroot/golang-github-containerd-stargz-snapshotter
Cloning into '/var/lib/mock/f42-build-3357701-45030/root/chroot_tmpdir/scmroot/golang-github-containerd-stargz-snapshotter'...
$ git fetch origin 10e7699600e344df7427cea0d7e899ae6331c5d8:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/golang-github-containerd-stargz-snapshotter
 * [new ref]         10e7699600e344df7427cea0d7e899ae6331c5d8 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 10e7699 Orphaned for 6+ weeks