message: Also always flush the tree
diff: @@ -147,6 +147,7 @@ void AliAnalysisTaskSigma0Run2::UserExec(Option_t * /*option*/) {
  fInputEvent, fMCEvent, fPhotonV0Cuts->GetV0s(), fAntiV0Cuts->GetV0s());
  // flush the data
  PostData(1, fOutputContainer);
  + PostData(2, fOutputTree);
  }
  //____________________________________________________________________________________________________
  