Word wrapping: Tab behavior in TLF editor

Hi,
I have created an editor using TLF which has word-wrapping enabled. The editor also takes in the Tab key and places it at prober position. In case you insert Tab at the beginning of the line except for the first line then the TAB is inserted in the previous line and it does not get wrapped.
Is there any way in which I can acheive word wrapping for Tabs? I have observed similar behavior for SPACE as well.
Why is such a behavior in the both the cases?

We are using the TLF bundled with Flex 4.1.0.16076, latest production release. You can verify the problem here in this demo:
http://labs.adobe.com/technologies/textlayout/demos/
Type two lines, make sure they wrap. At the beginning of the second line press the tab key multiple times. The tabs will stack up on the end of the first line.
If this is fixed in a newer version of TLF, is it safe to use with flex 4.1?
Thanks,
Ryan

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Tab Screenshot.png ‏6 KB
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