> That is not to say that the minibuffer display can never override
whatever is
> decided for the *Completions* display, but it should not do so
gratuitously. It
> should take the *Completions* display into account.
Ideally, yes. But, as I said before, we first need a mechanism that
allows us to establish a connection between such windows and the
minibuffer (we could try to fit a window to its buffer _after_ resizing
the minibuffer, but it's obvious how fragile such a solution would be).
> But I don't think this should be fixed in some general way, treating the
> *Completions* or minibuffer window in the same way as any other
window. If
> that's what you're suggesting wrt `window-size-fixed', then I think
that's
> probably not the best approach.
FAIK the *Completions* windows and the minibuffer are independent from
each other. So we have to find a mechanism to tell the window
management part what to do. Fixing window sizes in some "lax" fashion
is one way to do that.