$ git clone -n https://src.fedoraproject.org/rpms/polyml.git /var/lib/mock/f31-build-109070-33897/root/chroot_tmpdir/scmroot/polyml
Cloning into '/var/lib/mock/f31-build-109070-33897/root/chroot_tmpdir/scmroot/polyml'...
$ git reset --hard cebe334c173b3d6b18bc7ed06dca796fff054959
HEAD is now at cebe334 - Rebuilt for https://fedoraproject.org/wiki/Fedora_31_Mass_Rebuild