bug#65829: 29.1; pgtk build invalid clickable area in window

[Johann Höchtl]

On Sat, 2023-09-09 at 14:35 +0800, Po Lu wrote:
> Eli Zaretskii <eliz@gnu.org> writes:
> 
> > You are basically saying that, wherever you click mouse-1, Emacs in
> > your PGTK build thinks the click was on the tool bar?
> > 
> > Po Lu, do we know about such problems in the PGTK build?
> 
> No, we don't.  Johann, have you enabled tool-bar-mode or tab-bar-
> mode?
> Which pertinent variables have you customized?

While I am aware of tool-bar-mode or tab-bar-mode, the behaviour shows
when starting as emacs -Q, so it shows without any configuration
walking astray from the defaults.