bug#34294: 27.0.50; flymake-start-on-save-buffer has no effect

[Juri Linkov]

>>> IIRC you had problems fitting the window to its buffer afterwards.
>>> Shouldn't we investigate that first?
>>
>> Yes, the problem was fitting the xref window after it's displayed.
>
> What is going wrong here?  If with emacs -Q and
> display-buffer-in-direction.el loaded I evaluate say
>
> (display-buffer
>  (get-buffer-create "*text*")
>  '((display-buffer-in-direction)
>    (direction . right)
>    (window-width . 20)))
>
> I get a 20 character wide window.  If I put some text in that buffer
> and use 'fit-window-to-buffer' instead of 20, Emacs fits the window to
> its buffer as expected.  What is different with the xref window?

Maybe because fit-window-to-buffer is broken?
Another case where it's broken is proced
that uses fit-window-to-buffer:

0. emacs -Q
1. C-x 3
2. M-x proced
3. d d x

The buffer *Marked Processes* is displayed in random place.