bug#17554: 24.3.91; [Regression] re-usage of dired *Marked Files* buffer window

[martin rudalics]

>> I guess, quite generally emacs should make sure that the
>> *Completions* buffer uses a "sufficiently large" window to serve its
>> purpose.
>
> Emacs has never done that: if completions are displayed in an existing
> window, Emacs would always reuse the size, and not resize it.
>
> This is not a regression.

The behavior is worse in this particular case because we reuse an
existing window.  So the default behavior has worsened.

> If you don't like what you see, I'm sure Martin will be able to tell
> you how to customize the window creation such that it suits your
> wishes.

We should try to improve the default behavior.  The points Roland made
are valid, unfortunately.

martin