bug#46155: 28.0.50; Regression: buffer contents flicker on macOS frames when

[martin rudalics]

>  >      (defun test/resize (frame)
>  >        (modify-frame-parameters
>  >         frame `((width . ,(+ 80 (random 20))))))
>  >
>  > After each letter typed, the minibuffer-only frame is resized several
>  > times.  The text is not visible during resize.
>
> Can you try with a function that explicitly keeps the height constant -
> i.e., calls 'fit-frame-to-buffer' with ONLY set to 'horizontally'.

But I see that 'test/resize' does that already.  Is that function called
more than once each time you type a letter?

martin