message: Like in the function AliDielectronMC::IsMCTruth(AliDielectronPair *pair,...) take the abs(label) of the reconstructed track to get its corresponding MC track
diff: @@ -1626,8 +1626,8 @@ Bool_t AliDielectronMC::HaveSameMother(const AliDielectronPair * pair) const
  const AliVParticle * daughter2 = pair->GetSecondDaughterP();
  if (!daughter1 || !daughter2) return 0;
  - AliVParticle *mcDaughter1=GetMCTrackFromMCEvent(daughter1->GetLabel());
  - AliVParticle *mcDaughter2=GetMCTrackFromMCEvent(daughter2->GetLabel());
  + AliVParticle *mcDaughter1=GetMCTrackFromMCEvent(TMath::Abs(daughter1->GetLabel()));
  + AliVParticle *mcDaughter2=GetMCTrackFromMCEvent(TMath::Abs(daughter2->GetLabel()));
  if (!mcDaughter1 || !mcDaughter2) return 0;
  Int_t labelMother1=-1;
  