Just tested it. You are correct.
There is a problem somewhere form the dynamic js builder.
I updated the fiddle to use the js you provided and it works.
It won't work with this one: https://dl.dropbox.com/u/1239262/libs/canJS-1.1.3.js which was generated by clicking all the checkboxes and then clicking download from http://canjs.us/.
@Justin something is definitely broken when using the custom js files.