TreeView notifications fix (take 2)

[Mike Hearn]

> Can you confirm this "bug" also caused all my trouble here?
> http://www.winehq.com/hypermail/wine-devel/2003/03/0194.html
> 

Well, can't really confirm without further testing with the app, but it
does look quite similar yes. I suppose wait until Alexandre has written
a fix then try it again... A<->W crossovers seem to be caused by all
sorts of things though, so it might not be the same problem.

> Thanks,
>   Florian
> 
> 
>