A Bug in mx:TabNavigator ? See small example here

Hi all,
Maybe it's a bug in the TabNavigator component... should I
fill a new bug in the system or is that behaviour well known?
Just compile the code attach to this message.
It's a simple application with a mx:TabNavigator and some
buttons. When you create a new tab, via ActionScript, the 1st tab
ca be automatically selected.
But when you delete all the tabs (either by calling
removeAllChildren(), or by calling subsequently removeChildAt(...)
on every tabs), you wont be able to select the 1st tab, unless you
create a second one, select the new one and select the 1st one
afterward.
Is there any workaround for this?!
I really need to find a fix now, I can't wait another
revision of the Flex framework . . .
Please someone, help me!!!
thanks!!!
P.S. It's not a bug in the attach code, anybody can try this
at home, with the same result...

This is a bug and I just checked the source.
It seems that selectedIndex remains as 0 when you remove all.
When you addChild again, it checks if the index of added children
== selectedIndex and if yes, it do not focus. The patch should
affect removeAllChildren and removeChild, by setting -1 to
selectedIndex when numChidren reaches 0.
Where do I report this bug? It's the second one I found....
Regards,
Guilherme Blanco

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