bug#42218: 28.0.50; Fix for missed item undecoration on allout-widgets-mode deactivation

[Eli Zaretskii]

> From: Ken Manheimer <ken.manheimer@gmail.com>
> Date: Tue, 21 Jul 2020 11:17:36 -0400
> Cc: 42218@debbugs.gnu.org
> 
> Ok, reverts of the emacs-27 backports are pushed to origin.

Thanks you, and sorry I didn't mention this from the get-go.