message: prevent to use the same track
diff: @@ -348,6 +348,8 @@ void AliAnalysisTaskAlphaPiAOD::UserExec(Option_t *) {
  // jTrack loop - pion
  for (int jTrack{0}; jTrack < ev->GetNumberOfTracks(); ++jTrack) {
  + if (jTrack == iTrack)
  + continue;
  AliAODTrack *pionTrack = dynamic_cast<AliAODTrack *>(ev->GetTrack(jTrack));
  if (pionTrack) {
  AliWarning("ERROR: Could not retrieve one of the 2 AOD daughter tracks of the lambdas ...\n");
  