Can't change index from tap event

[43081j]

Example: http://plnkr.co/edit/pIcvOOwpwsITthrnlM8R?p=preview

Steps:

• Click the button
• It should select the second item but is forced back to index 0

If you have something inside an iron-selectable child which listens on tap event, it is incapable of setting the selected item.

This seems to be because iron-selectable catches any tap events and sets the selected item to the child which the event came from.

If you put the increment in the example inside this.async(...), it will work because the iron-selectable handler runs first.

[bicknellr]

As a temporary workaround, you can call stopPropagation on the tap event.