$ git clone -n https://src.fedoraproject.org/rpms/HepMC.git /var/lib/mock/f33-build-128599-40517/root/chroot_tmpdir/scmroot/HepMC
Cloning into '/var/lib/mock/f33-build-128599-40517/root/chroot_tmpdir/scmroot/HepMC'...
$ git reset --hard 703c8770503897a237b223bd506aa8d79724c404
HEAD is now at 703c877 - Rebuilt for https://fedoraproject.org/wiki/Fedora_32_Mass_Rebuild