bug#32825: 27.0.50; Deterministic window management

[martin rudalics]

> What I don't like so much is that, in effect, we use
> `display-buffer-in-previous-window', whose behavior is user
> configurable, but we don't like some if its semantics, so we overwrite
> them by specifying the previous-window property dynamically generated.
> This does what we want, but it is not user configurable any more.  If,
> for example, a user wants to always use a special frame for the
> debugger, he can't get that.

Why not?  Users can always provide their customizations via
'display-buffer-alist'.  Using, for example

(push '("*Backtrace*" (display-buffer-reuse-window display-buffer-pop-up-frame) 
(reusable-frames . t))
      display-buffer-alist)

The argument provided by 'debug' is for users who don't intend to
customize the behavior.

martin