From ca7cfc0240c3a3a0ae32e8463987e9ac833fcf2b Mon Sep 17 00:00:00 2001
From: unknown <davidback3@gmail.com>
Date: Wed, 10 Apr 2019 09:44:56 -0700
Subject: [PATCH] only call onMove on lastMouseEvent change

---
 scripts/system/libraries/entitySelectionTool.js | 10 +++++++---
 1 file changed, 7 insertions(+), 3 deletions(-)

diff --git a/scripts/system/libraries/entitySelectionTool.js b/scripts/system/libraries/entitySelectionTool.js
index d2f3ece5f1..3fdc1d6652 100644
--- a/scripts/system/libraries/entitySelectionTool.js
+++ b/scripts/system/libraries/entitySelectionTool.js
@@ -1347,12 +1347,16 @@ SelectionDisplay = (function() {
     };
     
     that.updateLastMouseEvent = function(event) {
-        if (activeTool && lastMouseEvent !== null) {            
+        if (activeTool && lastMouseEvent !== null) { 
+            var change = lastMouseEvent.isShifted !== event.isShifted || lastMouseEvent.isMeta !== event.isMeta ||
+                         lastMouseEvent.isControl !== event.isControl || lastMouseEvent.isAlt !== event.isAlt;
             lastMouseEvent.isShifted = event.isShifted; 
             lastMouseEvent.isMeta = event.isMeta;   
             lastMouseEvent.isControl = event.isControl; 
-            lastMouseEvent.isAlt = event.isAlt; 
-            activeTool.onMove(lastMouseEvent);      
+            lastMouseEvent.isAlt = event.isAlt;
+            if (change) {
+                activeTool.onMove(lastMouseEvent);
+            }           
         }
     };