$ git clone -n https://src.fedoraproject.org/rpms/vdr-tvguide.git /var/lib/mock/f29-build-4391-1035/root/thebuilddir/tmp/scmroot/vdr-tvguide
Cloning into '/var/lib/mock/f29-build-4391-1035/root/thebuilddir/tmp/scmroot/vdr-tvguide'...
$ git reset --hard 72a2fe4080ea13847e4d46d3540b65125693c29f
HEAD is now at 72a2fe4 - Rebuilt for https://fedoraproject.org/wiki/Fedora_28_Mass_Rebuild