$ git clone -n https://src.fedoraproject.org/rpms/libgnome.git /var/lib/mock/f29-build-6191-1516/root/thebuilddir/tmp/scmroot/libgnome
Cloning into '/var/lib/mock/f29-build-6191-1516/root/thebuilddir/tmp/scmroot/libgnome'...
$ git reset --hard ba4468ff74337515b48faaffae2e838176d71175
HEAD is now at ba4468f - Rebuilt for https://fedoraproject.org/wiki/Fedora_28_Mass_Rebuild