$ git clone -n https://src.fedoraproject.org/rpms/libgnome.git /var/lib/mock/f31-build-68983-30257/root/chroot_tmpdir/scmroot/libgnome
Cloning into '/var/lib/mock/f31-build-68983-30257/root/chroot_tmpdir/scmroot/libgnome'...
$ git reset --hard 6ff862e4a6c588934b60af47e78b85ff92d5fa6a
HEAD is now at 6ff862e - Rebuilt for https://fedoraproject.org/wiki/Fedora_31_Mass_Rebuild