If you do:

var children = Y.get('#el').queryAll('.child')

and one of the positions of the element changes, calling children.refresh() has no effect.

This is due to the queryAll method passing in an array to Y.all() and returning that result. This means that the query for the NodeList is never saved.

One way around this would be instead of just storing the query, NodeList would also store the original context. This would allow refresh to refresh the actual conditions of the original query.