message: repeat setup from Init in Execute (Caitlin's fix)
diff: @@ -85,6 +85,18 @@ struct ParaViewFidesEngine::EngineImpl
  node["catalyst/state/time"].set(timestep);
  node["catalyst/channels/fides/type"].set(std::string("fides"));
  + // options to set up the fides reader in paraview
  + std::ostringstream address;
  + address << &Io;
  +
  + node["catalyst/fides/json_file"].set(this->JSONFileName);
  + node["catalyst/fides/data_source_io/source"].set(std::string("source"));
  + node["catalyst/fides/data_source_io/address"].set(address.str());
  + node["catalyst/fides/data_source_path/source"].set(
  + std::string("source"));
  + node["catalyst/fides/data_source_path/path"].set(
  + std::string("DataReader"));
  +
  // catalyst requires the data node on a channel, but we don't actually
  // need it when using fides, so just create a dummy object to pass
  // the validation in catalyst
  