dialog-dismiss attribute on paper-icon-button not working with paper-dialog

[RebeccaStevens]

When the dialog-dismiss attribute is added to a paper-icon-button, clicking the button does not close the paper-dialog.

<paper-dialog>
  <paper-icon-button icon="icons:cancel" title="Close" dialog-dismiss></paper-icon-button>
  ...
</paper-dialog>

Note: Using the Inspector, if I add the dialog-dismiss attribute to the iron-icon in the paper-icon-button's dom then click the button, it will close.

PolymerElements/paper-dialog#87

[notwaldorf]

Closing, as this is a paper-dialog issue, and it's already being tracked there.