message: Fix variation for TPC chi2 constrained vs global cut
  Require cut string not to contain "Constrained" in case of
  the TPC chi2 variation, fixing incorrect assignment of
  misconfigured second cut object
diff: @@ -72,7 +72,7 @@ AliEmcalTrackSelection *AliEmcalAnalysisFactory::TrackCutsFactory(TString cut, B
  esdcuts->SetMaxChi2PerClusterITS(cutvalue);
  trackcuts.push_back(esdcuts);
  }
  - if(cut.Contains("VarTPCchi2")){
  + if(cut.Contains("VarTPCchi2") && !cut.Contains("Constrained")){
  double cutvalue = ValueDecoder(cut, "VarTPCchi2");
  AliESDtrackCuts *esdcuts = GenerateDefaultCutsESD();
  esdcuts->SetName(TString::Format("VarTPCchi2Cut%04d", static_cast<int>(cutvalue * 10.)));
  