$ git clone -n https://src.fedoraproject.org/rpms/constantine-backgrounds.git /var/lib/mock/f41-build-side-1-2633421-25921/root/chroot_tmpdir/scmroot/constantine-backgrounds
Cloning into '/var/lib/mock/f41-build-side-1-2633421-25921/root/chroot_tmpdir/scmroot/constantine-backgrounds'...
$ git fetch origin 9ed9b46c8e46e7fe683bb6fcc27f6b91b9d5b1b4:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/constantine-backgrounds
 * [new ref]         9ed9b46c8e46e7fe683bb6fcc27f6b91b9d5b1b4 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 9ed9b46 convert license to SPDX