From 3f0e89cd952b515ee0b6be025633a22f454b5543 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=D0=9B=D0=B0=D0=B2=D1=80=D1=91=D0=BD=D0=BE=D0=B2=20=D0=90?=
 =?UTF-8?q?=D0=BD=D1=82=D0=BE=D0=BD?= <lavrton@gmail.com>
Date: Thu, 8 May 2014 10:14:43 +0800
Subject: [PATCH] better detecting 'empty' dragging

---
 src/DragAndDrop.js | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/src/DragAndDrop.js b/src/DragAndDrop.js
index 1b558a28..3791c384 100644
--- a/src/DragAndDrop.js
+++ b/src/DragAndDrop.js
@@ -141,9 +141,8 @@
 
         this.setAbsolutePosition(newNodePos);
 
-        if (!this._lastPos ||
-            this._lastPos.x !== newNodePos.x ||
-            this._lastPos.y !== newNodePos.y) {
+        if (this._lastPos && this._lastPos.x === newNodePos.x &&
+            this._lastPos.y === newNodePos.y) {
             dd.anim.dirty = true;
         }