$ git clone -n https://src.fedoraproject.org/rpms/xonotic-data.git /var/lib/mock/f39-build-1512545-35566/root/chroot_tmpdir/scmroot/xonotic-data
Cloning into '/var/lib/mock/f39-build-1512545-35566/root/chroot_tmpdir/scmroot/xonotic-data'...
$ git fetch origin 9ab9d17c6bde52a2347cfd7cc44aafa999c37214:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/xonotic-data
 * [new ref]         9ab9d17c6bde52a2347cfd7cc44aafa999c37214 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 9ab9d17 Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild