$ git clone -n https://src.fedoraproject.org/rpms/libgnome.git /var/lib/mock/f31-build-58697-28487/root/chroot_tmpdir/scmroot/libgnome
Cloning into '/var/lib/mock/f31-build-58697-28487/root/chroot_tmpdir/scmroot/libgnome'...
$ git reset --hard 3b1efdd1d619d5234ad9e29abaee11421d9578af
HEAD is now at 3b1efdd - Rebuilt for https://fedoraproject.org/wiki/Fedora_30_Mass_Rebuild