broken radio/checkboxes in LibreOffice 6.1 (was: Re: UI regressions in "gen" plugin with LibreOffice 6.1)

[Rene Engelhard]

On Tue, Aug 07, 2018 at 12:47:04PM +0200, Heiko Tietze wrote:
> No problem here. But haphazardly I could imagine it's the expander icon (see screenshot) that is not painted for some reasons ending up in a zero/one pixel height for the first line. This is my setup:

How would I debug this? gtk2 works, OpenGL doesn't matter as it's off
afaics.

A new incarnation of this is http://bugs.debian.org/905819.
That screenshot looks GTKish for the "normal" UI so it seems drawing
those buttons by LO is broken?

Regards,

Rene