Noam Postavsky <npostavs@gmail.com> writes:

> Kévin Le Gouguec <kevin.legouguec@gmail.com> writes:
>
>> Now that Stefan committed a fix to Emacs 27, and Nicolas a workaround
>> to org-mode, this bug report can probably be closed; I just have a few
>> questions left:
>>
>> 1. Shouldn't Stefan's fix also be applied to
>>    font-lock-append-text-property?
>>
>> 2. Is it worth adding the test suite I posted in bug#35476#8 to the
>>    Emacs repository?
>
> I'd say the answers are yes and yes.  So would you mind adding the fix
> for font-lock-append-text-property to your patch?

Fix and test suite: