Activate non-invasive UPC settings for pbpb reconstruction

Can be disable by providing ALIEN_JDL_DISABLE_UPC=1 from the JDL

(cherry picked from commit 591af0c)

Author: shahor02

DATA/production/configurations/asyncReco/setenv_extra.sh

@@ -434,7 +434,10 @@ export ITSEXTRAERR="ITSCATrackerParam.sysErrY2[0]=$ERRIB;ITSCATrackerParam.sysEr
 # ad-hoc options for ITS reco workflow
 EXTRA_ITSRECO_CONFIG=
 if [[ $BEAMTYPE == "PbPb" ]]; then
-  EXTRA_ITSRECO_CONFIG="ITSCATrackerParam.deltaRof=1;ITSVertexerParam.clusterContributorsCut=16;ITSVertexerParam.lowMultBeamDistCut=0;ITSCATrackerParam.nROFsPerIterations=12;ITSCATrackerParam.perPrimaryVertexProcessing=true"
+  EXTRA_ITSRECO_CONFIG="ITSCATrackerParam.deltaRof=1;ITSVertexerParam.clusterContributorsCut=16;ITSVertexerParam.lowMultBeamDistCut=0;ITSCATrackerParam.nROFsPerIterations=12;ITSCATrackerParam.perPrimaryVertexProcessing=true;"
+  if [[ -z "$ALIEN_JDL_DISABLE_UPC" || $ALIEN_JDL_DISABLE_UPC != 1 ]]; then
+    EXTRA_ITSRECO_CONFIG+=";ITSVertexerParam.nIterations=2;ITSCATrackerParam.doUPCIteration=true;"
+  fi
 elif [[ $BEAMTYPE == "pp" ]]; then
   EXTRA_ITSRECO_CONFIG="ITSVertexerParam.phiCut=0.5;ITSVertexerParam.clusterContributorsCut=3;ITSVertexerParam.tanLambdaCut=0.2;"
 fi