$ git clone -n https://src.fedoraproject.org/rpms/jffi.git /var/lib/mock/f29-build-2752-784/root/thebuilddir/tmp/scmroot/jffi
Cloning into '/var/lib/mock/f29-build-2752-784/root/thebuilddir/tmp/scmroot/jffi'...
$ git reset --hard 1104312517db7af8150bd5dff55f1ef9a43ffba8
HEAD is now at 1104312 - Rebuilt for https://fedoraproject.org/wiki/Fedora_28_Mass_Rebuild