Re: [Bug] 'org-font-lock-extra-keywords' appear next to the parent heading when its subtree is folded.

[Philipp Kiefer]

On 24.01.2023 18:56, Ihor Radchenko wrote:
> Philipp Kiefer <phil.kiefer@gmail.com> writes:
>
> > > You set 'invisible text property to nil, which tells Emacs - make the
> > > text visible. Emacs obeys.
> > Well, with Orgmode version 9.5, Emacs was never *this* obedient, i. e.
> > this problem only began after I updated Orgmode to 9.6, which is why I
> > considered it a bug in the first place. I am aware I have set the
> > keywords to be visible but would not expect them to appear at the end of
> > the parent heading for a folded subtree! (see the screenshots and the
> > explanatory .org file). Showing them there does not make any sense in my
> > opinion. I would expect Orgmode to hide these keywords when they are in
> > a collapsed subtree, regardless of the 'invisible text' setting, which
> > is how it was handled pre 9.6 unless I'm much mistaken.
> Org may or may not do it, depending on the implementation details.
> What you are seeing is because we changed the way Org is folding text to
> use text properties instead of overlays (see
> https://orgmode.org/Changes.html).
>
> You may get the old behavior back by (1) Setting
> `org-fold-core--optimise-for-huge-buffers' to '(grab-invisible); (2)
> Setting `org-fold-core-style' to 'overlays before loading Org.
Thank you very much, that fixed it for me.
> I do not consider what you report as a bug. There were ways to break Org
> folding in the past (for example, by using overlays with high priority).
> Actually, I am not sure why you even need to set 'invisible to nil in
> your font-lock-keywords.
I chose this option to make it easier to remove emphasis markers but 
have now set up functions to do this for me automatically and have set 
'invisible to true.