Setting a node by property does not select the node in list

[dotpointer]

It does not work to pre-select a node. The button shows that the node is selected, but when the button is clicked then the node is not selected in the list and it defaults to the root node.

To test on alpha go to a path locator beneath 1 using the URL (important), note that the button shows the path, then click on the button and note that the list is on the root node and the item on the button is not selected.

Not sure if the problem is in the component or in the front-end, but I found no way the data could flow from selectedNode to highlightedNode, only the opposite, and the format of the object coming in on selectedNode differs from what the iron-list sets on highlightedNode, where the first has a pathLocator propety but the second seems to use path for the same thing.