This patch is a change to how org fontifies verbatim source blocks re: [1].
Hopefully it answers Nicolas's question from that thread. Best!
Tom

On Sun, Dec 8, 2019 at 12:05 AM Nicolas Goaziou <mail@nicolasgoaziou.fr> wrote:
> I do not understand. Source and example blocks are verbatim blocks,
> whereas verse blocks are not. There is nothing to match, is there?

[1] Bug: headlines escape blocks:
https://lists.gnu.org/archive/html/emacs-orgmode/2019-12/msg00133.html