On Thu, Oct 15, 2020 at 12:33:44AM +0300, Andrii Kolomoiets wrote:
> Alan Third <alan@idiocy.org> writes:
> 
> >> The frame must be small enough to not all the toolbar buttons fits the
> >> toolbar:
> >> 
> >> (setq test-frame (make-frame `((parent-frame . ,(selected-frame))
> >> 			                   (width . 41))))
> >> 
> >> The last button (isearch) is replaced by ">>".
> >
> > Funnily enough that ">>" is what I was looking at. I guess it's a
> > toolkit image and not something we provide with Emacs...?
> >
> >> There are no crash if '(width . 42)'.
> >
> > Can you try this:

Can you please try the attached patch. It looks like NSToolbarItem
makes a copy of the image, but EmacsImage is not set up to create
copies of itself correctly.
-- 
Alan Third