$ git clone -n https://src.fedoraproject.org/rpms/xfce4-appfinder.git /var/lib/mock/f41-build-side-1-2816867-32979/root/chroot_tmpdir/scmroot/xfce4-appfinder
Cloning into '/var/lib/mock/f41-build-side-1-2816867-32979/root/chroot_tmpdir/scmroot/xfce4-appfinder'...
$ git fetch origin b5ea0e2d691a05e1782b40b7a942643c7bd30fac:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/xfce4-appfinder
 * [new ref]         b5ea0e2d691a05e1782b40b7a942643c7bd30fac -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at b5ea0e2 convert GPLv2+ license to SPDX