bug#18195: 24.3.92; window-screen-lines is not accurate

[Eli Zaretskii]

> Date: Tue, 05 Aug 2014 16:12:53 +0200
> From: martin rudalics <rudalics@gmx.at>
> CC: dgutov@yandex.ru, 18195@debbugs.gnu.org
> 
>  >> It might be a bit clumsy to work with because you have to
>  >> temporarily show another buffer in its window
>  >
>  > That _is_ the problem.  Momentarily flashing some text in some window
>  > is not my idea of a good application.  It simply looks like a bug.
> 
> Well, nobody asked for such a feature so far.  Can you fix it so it
> simply works on the current buffer instead of the window's buffer?

Fix what exactly?  What is "it" in this context?