Polish characters input problem (text is vanished when use AltGr+z hotkey)

Hi,

It is actual for commonly used Polish Programmers keyboard layouts.
To input ż character right Alt+z key should be pressed.

But in TLF editor if you try to input ż character by pressing right Alt+z all previously typed text is vanished.

It easily can be reproduced in demo:

http://labs.adobe.com/technologies/textlayout/demos/

This issue is really very sad for the Polish users. Could be done something to fix it soon?

Thank you.