bug#28268: 26.0.50; (MS Windows) crash on C-g after closing Git GUI

[Eli Zaretskii]

> From: Richard Copley <rcopley@gmail.com>
> Date: Tue, 29 Aug 2017 20:02:33 +0100
> Cc: Noam Postavsky <npostavs@users.sourceforge.net>, 28268@debbugs.gnu.org
> 
> > It looks like not entirely our problem, or not at all: Windows itself
> > thinks that the process is still running, although waiting on its
> > handle to become signaled exits immediately, something that should
> > never happen.
> 
> Could it be that the (wish) subprocess inherited its parents' STDIN
> and STDOUT handles and so the process can't completely die until
> the subprocess does?

No, because closing wish doesn't stop the loop.