Short-circuit jQuery.event.fix if it has already fixed the current event object.

diff --git a/src/event.js b/src/event.js
index c0238ccab7256c39ef73cc2b84f9c57e30628d90..fa8be8d2f576de60d9f35ac049c5a550e0fcc69c 100644 (file)
--- a/src/event.js
+++ b/src/event.js
@@ -263,11 +263,18 @@ jQuery.event = {
        },
 
        fix: function(event) {
+               // Short-circuit if the event has already been fixed by jQuery.event.fix
+               if ( event[ expando ] )
+                       return event;
+                       
                // store a copy of the original event object 
                // and clone to set read-only properties
                var originalEvent = event;
                event = jQuery.extend({}, originalEvent);
                
+               // Mark the event as fixed by jQuery.event.fix
+               event[ expando ] = true;
+               
                // add preventDefault and stopPropagation since 
                // they will not work on the clone
                event.preventDefault = function() {