> Apologies for the delay. The updated patch works as expected.
 > There is still some strangeness if '((display-buffer-use-least-recent-window))
 > is used by itself as compared to using
 > '((display-buffer-reuse-window display-buffer-use-least-recent-window))
 >
 > Specifically, when exiting an org-src-edit buffer, display-buffer-reuse-window
 > must be present to prevent display-buffer-use-least-recent-window from
 > persisting
 > the pop-up window and/or changing a reused window to the buffer for
 > the org file.
 >
 > I don't think this is a blocker however, because it is not entirely
 > clear where the
 > issue lies, whether it is with how org-edit-special sets up for
 > restoring buffers,
 > or whether there is something that is off in the most recent implementation of
 > display-buffer-use-least-recent-window.
 >
 > I think we are ok to proceed with the latest patch.

I now tried to document everything I wrote so far.  The attached patch
also differs from the preceding ones in the following regards:

- 'display-buffer-reuse-window' calls 'display-buffer--lru-window' with
   suitable arguments.  This has the benefit that it honors the new
   minimum size entries as well which makes the documentation simpler.
   It has the disadvantage that if I didn't guess those arguments
   correctly, the default behavior of 'display-buffer-use-some-window'
   might change wrt previous versions.

- 'window-bump-use-time' was rewritten taking into account some of the
   issues I mentioned in my last posting.

- A 'bump-use-time' action alist entry has been added.

I'm not sure whether these changes should be made on the release branch.
IMO a suitable minimal change for the release branch would be to remove
all references to 'display-buffer-avoid-small-windows' and leave
'display-buffer-use-least-recent-window' and 'window-bump-use-time'
untouched.  The latter are here since Emacs 28, so there's a good excuse
for leaving them alone.

In either case note that I don't synch with Savannah so someone else
would have to apply these changes.

martin