// check again for equality here
assertObrPath(rId, "http://sigil2.codecauldron.org/", "/spring-external.obr");
// note sigil3 and external -> internal
proxyRepository.asProxyOf("http://sigil3.codecauldron.org/spring-internal.obr").save();
// check again for equality here
assertObrPath(rId, "http://sigil3.codecauldron.org/", "/spring-internal.obr");
}