$ git clone -n https://src.fedoraproject.org/rpms/voro++.git /var/lib/mock/f31-build-90037-32156/root/chroot_tmpdir/scmroot/voro++
Cloning into '/var/lib/mock/f31-build-90037-32156/root/chroot_tmpdir/scmroot/voro++'...
$ git reset --hard 8284aa35e88e6d03da1bae94b9d28856048baa11
HEAD is now at 8284aa3 - Rebuilt for https://fedoraproject.org/wiki/Fedora_31_Mass_Rebuild