In case you want to animate an element, from position left:-11000, to position left:-12000, you will end up animating it from position left:0, to position left:-12000.

This is a result of a change in the method that gets the current CSS value (cur):

return r && r > -10000 ? r : parseFloat(jQuery.curCSS(this.elem, this.prop)) || 0;

changed to:

return r && r > -10000 ? r : 0;

I am trying to animate an element with a variable number of child elements to show each child element at a time. In case I have, for example, 12 child elements with width=1000px, animating from the 11th to the 12th will result in an incorrect animation.