bug#51550: 29.0.50; Customize Group INS buttons sometimes don't have a left box line

[Eli Zaretskii]

> From: Po Lu <luangruo@yahoo.com>
> Cc: stefan@marxist.se,  stephen.berman@gmx.net,  51550@debbugs.gnu.org
> Date: Tue, 28 Dec 2021 20:45:22 +0800
> 
> Eli Zaretskii <eliz@gnu.org> writes:
> 
> > I didn't yet look seriously enough at that, but: I can only reproduce
> > this problem on the master branch; Emacs 28 works as expected.  Is
> > that what you see as well?
> 
> Yes, widget-field has a box on master, while it doesn't on emacs-28.

The other way around, I guess?

Or maybe I don't understand what you mean by "box"?

> In fact, it was you who suggested disabling the buggy code on Emacs
> 28 :)

Which buggy code was that, and where did I suggest disabling it?