From 4c5c921269d0eef760dcce256d393e87938fcfab Mon Sep 17 00:00:00 2001
From: Chengdong Fu <fucd@ihep.ac.cn>
Date: Mon, 16 Oct 2023 15:21:36 +0800
Subject: [PATCH] add unlink while create TrackerHit object

---
 Reconstruction/Tracking/src/Clupatra/clupatra_new.cpp | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/Reconstruction/Tracking/src/Clupatra/clupatra_new.cpp b/Reconstruction/Tracking/src/Clupatra/clupatra_new.cpp
index 9ecee564..6ff24484 100644
--- a/Reconstruction/Tracking/src/Clupatra/clupatra_new.cpp
+++ b/Reconstruction/Tracking/src/Clupatra/clupatra_new.cpp
@@ -287,7 +287,8 @@ namespace clupatra_new{
 		UTIL::BitField64 encoder( UTIL::ILDCellID0::encoder_string ) ;
 		encoder[UTIL::ILDCellID0::subdet] = UTIL::ILDDetID::TPC ;
 
-		edm4hep::TrackerHit firstHit; // =  0 ;
+		edm4hep::TrackerHit firstHit = 0;
+		// = 0 equal to unlink() 
                 //firstHit.unlink();
 
 		IMarlinTrack* bwTrk = 0 ;
-- 
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