From 30837324ee1778a4e7b3faaa35040a070555e3d7 Mon Sep 17 00:00:00 2001
From: Don Gagne <Don@don-laptop.local>
Date: Wed, 3 Jan 2018 18:55:17 -0800
Subject: [PATCH] Fix ove-signalling

---
 src/MissionManager/QGCMapPolygon.cc | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/src/MissionManager/QGCMapPolygon.cc b/src/MissionManager/QGCMapPolygon.cc
index aa1e0b389..18ae00fdf 100644
--- a/src/MissionManager/QGCMapPolygon.cc
+++ b/src/MissionManager/QGCMapPolygon.cc
@@ -302,9 +302,10 @@ void QGCMapPolygon::_updateCenter(void)
             }
             center = _coordFromPointF(QPointF(centroid.x() / polygonF.count(), centroid.y() / polygonF.count()));
         }
-
-        _center = center;
-        emit centerChanged(center);
+        if (_center != center) {
+            _center = center;
+            emit centerChanged(center);
+        }
     }
 }
 
-- 
2.22.0