Need help debugging a memory corruption bug in shfldr_unixfs.c

[Dimi Paun]

From: "Phil Krylov" <phil at newstar.rinet.ru>
> Here is a patch which adds checking if the window has been destroyed at
> that point. I don't know if it is acceptable but it fixes the problem.

But this could potentially happen on any notification,
what makes this particular one special (sorry, I was away
on vacation and I missed this thread).

-- 
Dimi.