bug#23830: 25.0.94; Emacs eats left Windows key on Windows 7

[Eli Zaretskii <eliz@gnu.org>]

> From: Richard Copley <rcopley@gmail.com>
> Date: Wed, 22 Jun 2016 19:22:01 +0100
> 
> In recent builds of the emacs-25 branch, when an Emacs frame is in the
> foreground, it intercepts the left Windows key (and the windowing
> system does not react to the key event).
> 
> My two most recent emacs-25 builds are from revisions:
>   ab182c624868fcc0ed97597db669911099d4bd28 (commit time 2016-06-12
> 17:33:52 UTC),
>   788c9b69e1801dd883dbe603281571ef3c78a724 (commit time 2016-05-31
> 06:17:55 UTC).
> The bug is present in the 2016-06-12 build and absent in the 2016-05-31 build.

These two commits are not on the emacs-25 branch.

> To reproduce:
> 
> Run emacs -Q.
> Make sure the Emacs frame is the active foreground window.
> Press the left Windows key.
> Expected result: the start menu opens (depends on users's settings).
> Actual result: Emacs receives the keypress instead (this can be verified
> by typing [C-h k lwindow]).
> 
> In GNU Emacs 25.1.50.1 (x86_64-w64-mingw32)
>  of 2016-06-13 built on [redacted]

This is not the emacs-25 branch, this is master.  Could you please
clarify this confusion?

The keyboard handling on Windows was changed on master in February, so
I don't see how some change in the beginning of June could have done
anything about that.  I'm probably missing something.