message: adding check for null pointer
diff: @@ -50,9 +50,9 @@ public:
  void SetVarFiredTriggerClasses (TString var ) { fReplicator->SetVarListHeaderTC(var);}
  void SaveVzero(Bool_t var) { fReplicator->SetSaveVzero(var); }
  void SaveZDC(Bool_t var) { fReplicator->SetSaveZDC(var); }
  - void SaveV0s(Bool_t var, AliAnalysisCuts* v0Cuts = 0) { fReplicator->SetSaveV0s(var); fReplicator->SetV0Cuts(v0Cuts); fQAOutput->Add(v0Cuts); }
  - void SaveCascades(Bool_t var, AliAnalysisCuts* cuts = 0) { fReplicator->SetSaveCascades(var); fReplicator->SetCascadeCuts(cuts); fQAOutput->Add(cuts); }
  - void SaveConversionPhotons(Bool_t var, AliAnalysisCuts* cuts = 0) { fReplicator->SetSaveConversionPhotons(var); fReplicator->SetConversionPhotonCuts(cuts); fQAOutput->Add(cuts); }
  + void SaveV0s(Bool_t var, AliAnalysisCuts* v0Cuts = 0) { fReplicator->SetSaveV0s(var); fReplicator->SetV0Cuts(v0Cuts); if (v0Cuts) fQAOutput->Add(v0Cuts); }
  + void SaveCascades(Bool_t var, AliAnalysisCuts* cuts = 0) { fReplicator->SetSaveCascades(var); fReplicator->SetCascadeCuts(cuts); if (cuts) fQAOutput->Add(cuts); }
  + void SaveConversionPhotons(Bool_t var, AliAnalysisCuts* cuts = 0) { fReplicator->SetSaveConversionPhotons(var); fReplicator->SetConversionPhotonCuts(cuts); if (cuts) fQAOutput->Add(cuts); }
  AliNanoAODReplicator* GetReplicator() { return fReplicator; }
  