revert changes to SGSelector and move trueGap into process function

Author: jjuracka

PWGUD/Core/SGSelector.h

@@ -24,10 +24,8 @@
 
 #include "Common/CCDB/RCTSelectionFlags.h"
 
-#include "Framework/AnalysisDataModel.h"
 #include "Framework/AnalysisTask.h"
 #include "Framework/Logger.h"
-#include "Framework/runDataProcessing.h"
 
 #include <cmath>
 

PWGUD/Tasks/upcRhoAnalysis.cxx

@@ -438,9 +438,6 @@ struct UpcRhoAnalysis {
     if (useRecoFlag && (collision.flags() != cutRecoFlag)) // check reconstruction mode
       return false;
 
-    if (useTrueGap && (gapSide != sgSelector.trueGap(collision, cutTrueGapSideFV0, cutTrueGapSideFT0A, cutTrueGapSideFT0C, cutTrueGapSideZDC))) // check true gap side
-      return false;
-
     return true;
   }
 
@@ -898,6 +895,8 @@ struct UpcRhoAnalysis {
   {
     if (cutGapSide && collision.gapSide() != gapSide)
       return;
+    if (useTrueGap && (collision.gapSide() != sgSelector.trueGap(collision, cutTrueGapSideFV0, cutTrueGapSideFT0A, cutTrueGapSideFT0C, cutTrueGapSideZDC))) // check true gap side
+      return;
     processReco(collision, tracks);
   }
   PROCESS_SWITCH(UpcRhoAnalysis, processSGdata, "analyse SG data", true);