Thanking you so much Anders for debugging my Elisp code.

Everything works perfectly fine with the quote removed from in front of the
append.

Thank you to Eli Zaretskii for your additional help!

On Sun, 2 Jan 2022 at 18:19, Stefan Monnier <monnier@iro.umontreal.ca>
wrote:

> >      ("abc" 0 'bold 'append)
>
> No wonder it doesn't work: while the 3rd element of the above list is an
> ELisp expression passed to `eval`, the 4th is not, so the quote before
> `append` shouldn't be there.
>
>
>         Stefan
>
>