bug#62847: 29.0.90; Propertized space in Org Agenda's mode-name

[Mattias Engdegård]

16 apr. 2023 kl. 14.02 skrev Mattias Engdegård <mattiase@acm.org>:

> Even if such a check defaults to off, it could be enabled selectively to root 
> out bugs like this one. I'll see what I can do.

Here's a patch suitable for debugging (applies to master). It's not proposed 
for inclusion in Emacs.

Attempts to change properties of literal strings result in an error by default. 
You can also make it warn or do nothing.
The patch does not attempt to be very subtle or efficient about it but it 
should be sound.

If you find it hard to find where the problem is, attach a debugger and set a 
breakpoint on the function `string_literal_prop_change`.