message: index must be positive
diff: @@ -2412,8 +2412,8 @@ void AliAnalysisTaskAO2Dconverter::FillEventInTF()
  continue;
  Int_t pidx = v0->GetPindex();
  Int_t nidx = v0->GetNindex();
  - v0s.fIndexTracksPos = TMath::Sign(TMath::Abs(pidx) + fOffsetTrack, pidx); // Positive track ID
  - v0s.fIndexTracksNeg = TMath::Sign(TMath::Abs(nidx) + fOffsetTrack, nidx); // Negative track ID
  + v0s.fIndexTracksPos = TMath::Abs(pidx) + fOffsetTrack; // Positive track ID
  + v0s.fIndexTracksNeg = TMath::Abs(nidx) + fOffsetTrack; // Negative track ID
  }
  else {
  AliAODv0 *v0 = fAOD->GetV0(iv0);
  @@ -2422,8 +2422,8 @@ void AliAnalysisTaskAO2Dconverter::FillEventInTF()
  continue;
  Int_t pidx = v0->GetPosID();
  Int_t nidx = v0->GetNegID();
  - v0s.fIndexTracksPos = TMath::Sign(TMath::Abs(pidx) + fOffsetTrack, pidx); // Positive track ID
  - v0s.fIndexTracksNeg = TMath::Sign(TMath::Abs(nidx) + fOffsetTrack, nidx); // Negative track ID
  + v0s.fIndexTracksPos = TMath::Abs(pidx) + fOffsetTrack; // Positive track ID
  + v0s.fIndexTracksNeg = TMath::Abs(nidx) + fOffsetTrack; // Negative track ID
  }
  FillTree(kV0s);
  