IE leak on Morph

[ecentinela]

Testing my classes I have discover a new Leak for IE. This time is the morph class.

This is the code.

new Element('div').inject(document.body).set('morph', {
	onComplete: function() {
		this.element.destroy();
	}
}).morph({
	left: 50
});

If I change the morph for tween (and the appropiate values on the call) there is no leak. And with the morph, if you delete the onComplete callback, there isn't memory leak.