bug#42184: 27.0.91; org-fontify-whole-heading-line does not work in emacs 27

[Eli Zaretskii]

> From: Kévin Le Gouguec <kevin.legouguec@gmail.com>
> Cc: egh@e6h.org,  42184@debbugs.gnu.org,  Nicolas Goaziou
>  <mail@nicolasgoaziou.fr>,  Bastien <bzg@gnu.org>
> Date: Sat, 04 Jul 2020 21:52:08 +0200
> 
> To make the discussion more concrete: here's a suggested patch for Org
> against the emacs-27 branch; what say you?

I don't understand why you extend all those faces: the original report
was about a much smaller set.  It is not the intent that every face
that happens to span the entire line be extended: that's why we made
':extend' by default be off for a face.

What am I missing?