message: update pool Mult & Fix TPC-FMD
diff: @@ -792,7 +792,7 @@ void AliAnalysisTaskCorrForNonlinearFlow::FillCorrelationsMixed() {
  binscont[2] = fPVz;
  binscont[3] = 1;
  - AliEventPool* pool = fPoolMgr->GetEventPool(fCentrality, fPVz);
  + AliEventPool* pool = fPoolMgr->GetEventPool(NtrksCounter, fPVz);
  if (!pool) {
  return;
  }
  @@ -857,7 +857,7 @@ void AliAnalysisTaskCorrForNonlinearFlow::FillCorrelationsMixed() {
  } // end TPC-TPC
  else if (anaType.EqualTo("TPCFMD")) {
  - AliPartSimpleForCorr* trackAss = dynamic_cast<AliPartSimpleForCorr*>(fTracksAss->At(iAss));
  + AliPartSimpleForCorr* trackAss = dynamic_cast<AliPartSimpleForCorr*>(mixTracks->At(iAss));
  Double_t phiAss = trackAss->Phi();
  Double_t etaAss = trackAss->Eta();
  