JCarousel Center slide, circular wrap

Question

Created a slider with Wrap = circular and center = true,

The left is always empty. I tried editing the source to add the last few siblings to the first, but it didn’t work. How to get visible left / right scroll with active center slide

http://jsfiddle.net/AYBJ6/4/

$ ('jcarousel') .jcarousel ({

     wrap: 'circular',
     center: true
 });