The file /touch/src/dom/Element.traversal.js, which is not referenced anywhere in the docs, overwrites the implementation referenced in the docs with this one:

    select: function(selector, composite) {
        return, this.dom, composite);
...which gets the parameters to wrong, causing the select to find elements across the entire document rather than within the scope of the element

Snapshot 10:30:12 6:50 PM.png