$ git clone -n https://src.fedoraproject.org/rpms/python-lz4.git /var/lib/mock/f40-build-783501-132941/root/chroot_tmpdir/scmroot/python-lz4
Cloning into '/var/lib/mock/f40-build-783501-132941/root/chroot_tmpdir/scmroot/python-lz4'...
$ git fetch origin b334215fe9a3e7a1fc8bab929bacaac7de2ccf91:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/python-lz4
 * [new ref]         b334215fe9a3e7a1fc8bab929bacaac7de2ccf91 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at b334215 Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild