$ git clone -n https://src.fedoraproject.org/rpms/xonotic-data.git /var/lib/mock/f38-build-side-42-init-devel-823647-28355/root/chroot_tmpdir/scmroot/xonotic-data
Cloning into '/var/lib/mock/f38-build-side-42-init-devel-823647-28355/root/chroot_tmpdir/scmroot/xonotic-data'...
$ git fetch origin a5853978b88d29fc36554e0b9973dbddd1b9739d:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/xonotic-data
 * [new ref]         a5853978b88d29fc36554e0b9973dbddd1b9739d -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at a585397 Rebuilt for https://fedoraproject.org/wiki/Fedora_38_Mass_Rebuild