From a1ab9678e9bba6b20989104040bc31b782094335 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Scott=20Gonz=C3=A1lez?= <scott.gonzalez@gmail.com>
Date: Thu, 27 Jan 2011 14:49:59 -0500
Subject: [PATCH] Autocomplete: Fixed handling of race conditions when using
 jQuery 1.3.2. Fixes #6904 - Autocomplete: Race condition handling means.

---
 ui/jquery.ui.autocomplete.js | 14 ++++++++------
 1 file changed, 8 insertions(+), 6 deletions(-)

diff --git a/ui/jquery.ui.autocomplete.js b/ui/jquery.ui.autocomplete.js
index e62ea93fe..594d59530 100644
--- a/ui/jquery.ui.autocomplete.js
+++ b/ui/jquery.ui.autocomplete.js
@@ -15,6 +15,9 @@
  */
 (function( $, undefined ) {
 
+// used to prevent race conditions with remote data sources
+var requestIndex = 0;
+
 $.widget( "ui.autocomplete", {
 	defaultElement: "<input>",
 	options: {
@@ -257,17 +260,16 @@ $.widget( "ui.autocomplete", {
 					url: url,
 					data: request,
 					dataType: "json",
-					success: function( data, status, xhr ) {
-						if ( xhr === self.xhr ) {
+					autocompleteRequest: ++requestIndex,
+					success: function( data, status ) {
+						if ( this.autocompleteRequest === requestIndex ) {
 							response( data );
 						}
-						self.xhr = null;
 					},
-					error: function( xhr ) {
-						if ( xhr === self.xhr ) {
+					error: function() {
+						if ( this.autocompleteRequest === requestIndex ) {
 							response( [] );
 						}
-						self.xhr = null;
 					}
 				});
 			};