Not sure how much the fiddle can be reduced short of the fixture's data set. But that's the data set that generated the error for me and I just tried to cut it down by hand, but I must have removed something that was needed to cause the error. I can try again later today to make the data set smaller, but the rest of the fiddle contains the elements required to recreate the issue.
The models are needed so the nested structures can be created. The live binding is needed too.
I just got rid of the can.Control
Thanks.