$ git clone -n https://src.fedoraproject.org/rpms/ratools.git /var/lib/mock/f39-build-1489745-34501/root/chroot_tmpdir/scmroot/ratools
Cloning into '/var/lib/mock/f39-build-1489745-34501/root/chroot_tmpdir/scmroot/ratools'...
$ git fetch origin a6da4faa24becc49d2d113e73eecf8e18014aca5:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/ratools
 * [new ref]         a6da4faa24becc49d2d113e73eecf8e18014aca5 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at a6da4fa Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild