$ git clone -n https://src.fedoraproject.org/rpms/HepMC3.git /var/lib/mock/f40-build-800720-143613/root/chroot_tmpdir/scmroot/HepMC3
Cloning into '/var/lib/mock/f40-build-800720-143613/root/chroot_tmpdir/scmroot/HepMC3'...
$ git fetch origin a68572eb7a0c8cd01072aed5003a7f242ff2b112:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/HepMC3
 * [new ref]         a68572eb7a0c8cd01072aed5003a7f242ff2b112 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at a68572e Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild