$ git clone -n https://src.fedoraproject.org/rpms/xonotic.git /var/lib/mock/f40-build-2333416-59220/root/chroot_tmpdir/scmroot/xonotic
Cloning into '/var/lib/mock/f40-build-2333416-59220/root/chroot_tmpdir/scmroot/xonotic'...
$ git fetch origin 71c292e2101a7fc7f7d42609510e2deaa04cb794:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/xonotic
 * [new ref]         71c292e2101a7fc7f7d42609510e2deaa04cb794 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 71c292e Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild