From 91bc90241780bcc4680ff9b114f93c06f2b92e18 Mon Sep 17 00:00:00 2001
From: Mingrui <mingrui.zhao@mail.labz0.org>
Date: Wed, 14 Oct 2020 11:44:31 +0800
Subject: [PATCH] fix bug of function getTrackStateAt

---
 Reconstruction/Tracking/src/Clupatra/TrackingHelper.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Reconstruction/Tracking/src/Clupatra/TrackingHelper.h b/Reconstruction/Tracking/src/Clupatra/TrackingHelper.h
index 0d3cec43..2a16aa82 100644
--- a/Reconstruction/Tracking/src/Clupatra/TrackingHelper.h
+++ b/Reconstruction/Tracking/src/Clupatra/TrackingHelper.h
@@ -20,7 +20,7 @@ inline bool hasTrackStateAt(edm4hep::ConstTrack track, int location) {
 inline edm4hep::TrackState getTrackStateAt(edm4hep::ConstTrack track, int location) {
     for (auto it = track.trackStates_begin(); it != track.trackStates_end(); it++) {
         if (it->location == location) {
-            *it;
+            return *it;
         }
     }
     return edm4hep::TrackState();
-- 
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