DulicatePropertyException trying to run inner.composite sample

[Ignacio Silva-Lepe]

I am trying to run the inner.composite sample and I am getting the exception
in http://rafb.net/paste/results/RDCjwL67.html. I have made a few changes to
the callback infrastructure to eliminate the need for routing tables at each
composite reference hop, but it does not seem that that's what's causing the
problem, as the exception occurs when trying to load the scdl. Any ideas?