Make sure that a clone of the animate speed properties are used to avoid recursion...

diff --git a/src/effects.js b/src/effects.js
index f3163eb..56141bb 100644 (file)
--- a/src/effects.js
+++ b/src/effects.js
@@ -248,7 +248,7 @@ jQuery.each({
 
 jQuery.extend({
        speed: function( speed, easing, fn ) {
-               var opt = speed && typeof speed === "object" ? speed : {
+               var opt = speed && typeof speed === "object" ? jQuery.extend({}, speed) : {
                        complete: fn || !fn && easing ||
                                jQuery.isFunction( speed ) && speed,
                        duration: speed,