bug#39822: 27.0.90; Cannot set *Completions* buffer height using display-buffer-alist

[martin rudalics]

> Yes, it's overkill.  I can't imagine a situation when the
> *Completions* buffer needs to be displayed in two windows.

Separate completions in two different frames?

> I see that you proposed this as a use case that justifies
> adding a WINDOW arg to 'after-display-function'.
> But I already agreed about adding a new arg to
> 'after-display-function', and will add it anyway.

OK.  To avoid confusions 'after-display-function' should be renamed to
'after-display-buffer-function' at least.

martin