$ git clone -n https://src.fedoraproject.org/rpms/colord.git /var/lib/mock/f42-build-3300205-41426/root/chroot_tmpdir/scmroot/colord
Cloning into '/var/lib/mock/f42-build-3300205-41426/root/chroot_tmpdir/scmroot/colord'...
$ git fetch origin ae0f69284e17d53280859558d673248081a36c05:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/colord
 * [new ref]         ae0f69284e17d53280859558d673248081a36c05 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at ae0f692 Drop call to %sysusers_create_compat