$ git clone -n https://src.fedoraproject.org/rpms/reflections.git /var/lib/mock/f40-build-2437730-60860/root/chroot_tmpdir/scmroot/reflections
Cloning into '/var/lib/mock/f40-build-2437730-60860/root/chroot_tmpdir/scmroot/reflections'...
$ git fetch origin 0c9b88ff37a17f841cb80472eda37d6ad56a3a30:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/reflections
 * [new ref]         0c9b88ff37a17f841cb80472eda37d6ad56a3a30 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 0c9b88f Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild