bug#52685: 29.0.50; Horizontal scrolling doesn't work when compiled with pgtk

[Andrey Listopadov]

>Could you explain what "reversed" means in this context?  Which events
>are sent when you scroll with your fingers moving leftwards?  And
>rightwards?
>
>Perhaps you just need to set mouse-wheel-tilt-scroll to t.

I have this setting enabled. I also have mouse-wheel-flip-direction set to t.

The problem is, that the same touchpad movement scrolls text in different 
directions when Emacs is compiled with and without pgtk support with the same 
init file.

When compiled without pgtk, its behavior configured in my init file matches all 
system apps, and when compiled with the pgtk support it is inversed.

Both pgtk and non-pgtk builds send rhe same events, but scroll in different 
directions.