$ git clone -n https://src.fedoraproject.org/rpms/libpolyxmass.git /var/lib/mock/f31-build-69914-30380/root/chroot_tmpdir/scmroot/libpolyxmass
Cloning into '/var/lib/mock/f31-build-69914-30380/root/chroot_tmpdir/scmroot/libpolyxmass'...
$ git reset --hard f8cc048b5341224e08573ace12069084f70e0766
HEAD is now at f8cc048 - Rebuilt for https://fedoraproject.org/wiki/Fedora_31_Mass_Rebuild