$ git clone -n https://src.fedoraproject.org/rpms/openclonk.git /var/lib/mock/f40-build-2617580-64432/root/chroot_tmpdir/scmroot/openclonk
Cloning into '/var/lib/mock/f40-build-2617580-64432/root/chroot_tmpdir/scmroot/openclonk'...
$ git fetch origin b86efe8f99f393ec9f5fc38a3374ae735216295d:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/openclonk
 * [new ref]         b86efe8f99f393ec9f5fc38a3374ae735216295d -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at b86efe8 Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild