Sorting member categories in correct order

Author: phymanshu

PWGHF/D2H/Tasks/taskD0.cxx

@@ -127,8 +127,10 @@ struct HfTaskD0 {
   // using TracksWithExtra = o2::soa::Join<o2::aod::FullTracks, o2::aod::TrackSelection>;
 
   Filter filterD0Flag = (o2::aod::hf_track_index::hfflag & static_cast<uint8_t>(BIT(aod::hf_cand_2prong::DecayType::D0ToPiK))) != static_cast<uint8_t>(0);
-
+  
+  Preslice<TracksWPid> perCol = aod::track::collisionId;
   Preslice<aod::HfCand2Prong> candD0PerCollision = aod::hf_cand::collisionId;
+
   PresliceUnsorted<CollisionsWithMcLabels> colPerMcCollision = aod::mccollisionlabel::mcCollisionId;
   PresliceUnsorted<CollisionsWithMcLabelsCent> colPerMcCollisionCent = aod::mccollisionlabel::mcCollisionId;
 
@@ -142,8 +144,6 @@ struct HfTaskD0 {
   Partition<D0CandidatesMlMc> selectedD0CandidatesMlMc = aod::hf_sel_candidate_d0::isRecoHfFlag >= selectionFlagHf;
   Partition<D0CandidatesMlMcKF> selectedD0CandidatesMlMcKF = aod::hf_sel_candidate_d0::isRecoHfFlag >= selectionFlagHf;
 
-  Preslice<TracksWPid> perCol = aod::track::collisionId;
-
   // ThnSparse for ML outputScores and Vars
   ConfigurableAxis thnConfigAxisBkgScore{"thnConfigAxisBkgScore", {50, 0, 1}, "Bkg score bins"};
   ConfigurableAxis thnConfigAxisNonPromptScore{"thnConfigAxisNonPromptScore", {50, 0, 1}, "Non-prompt score bins"};