Autocomplete component does not stop the ESC key event propagating if the event was handled by the autocomplete

[borodaalex]

Suppose, you have md-autocomplete element inside md-dialog and type something inside md-autocomplete. You want to discard results of autocomplete and press esc button, but in this case dialog is closed.
I guess what needs to happen is the autocomplete component needs to stop the esc key event propagating if the event was handled by the autocomplete.

I've posted workaround in gitter.im/angular/material but it sounds like this should be handled within ngMaterial.