From 676134128d5203dd888b6e089f316107d02c9220 Mon Sep 17 00:00:00 2001
From: why520crazy <why520crazy@163.com>
Date: Tue, 10 Nov 2015 11:13:09 +0800
Subject: [PATCH] don't trigger start event when an element is been dragged,
 otherwise the evt.oldindex always wrong when set option.group.

---
 Sortable.js | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/Sortable.js b/Sortable.js
index f4ac38d..dbbcc7c 100644
--- a/Sortable.js
+++ b/Sortable.js
@@ -258,8 +258,10 @@
 				target = (touch || evt).target,
 				originalTarget = target,
 				filter = options.filter;
-
-
+			// don't trigger start event when an element is been dragged, otherwise the evt.oldindex always wrong when set option.group.
+			if(dragEl){
+				return;
+			}
 			if (type === 'mousedown' && evt.button !== 0 || options.disabled) {
 				return; // only left button or enabled
 			}