Dialogs components problem

Hello Isomorphic team:

I'm using your showcase from 2013-12-26 and ran into a problem with the dialog components.

Steps to reproduce.

1. go to your showcase from 2013-12-26
2. tap on Dialogs
3. tap on popover(I just picked this as example but it's happening with all dialog components).
4. tap on Show Popover(Then the dialog is shown)
5. press the phone back button(not the application back button)
see picture #1 for reference.

When the app slides back to the previous screen the dialog is still showing up. See picture #2 for reference.

Thanks

Attached Images

	reference #1.jpeg (50.2 KB)
	reference #2.png (34.9 KB)