$ git clone -n https://src.fedoraproject.org/rpms/golang-etcd-client-3.git /var/lib/mock/f40-build-2575613-62241/root/chroot_tmpdir/scmroot/golang-etcd-client-3
Cloning into '/var/lib/mock/f40-build-2575613-62241/root/chroot_tmpdir/scmroot/golang-etcd-client-3'...
$ git fetch origin 9d5520a3438ad9b310147f0e461cde0d2f7cccf2:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/golang-etcd-client-3
 * [new ref]         9d5520a3438ad9b310147f0e461cde0d2f7cccf2 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 9d5520a Added the README