bug#41965: 26.3; weird behaviour of 'scroll-down-line'

[Eli Zaretskii]

> Date: Sat, 20 Jun 2020 13:36:18 +0200
> From: cage <cage-dev@twistfold.it>
> 
> 1. paste the following code in a buffer:
> 
> -----8<----8<---------8<----8<----
> (let ((prefix-first " \n")
>         (stopper      "\n"))
>     (list 'face 'default 'display
>           (concat prefix-first
>                   (propertize "foo"
>                               'face '(:background "red" :foreground "yellow"))
>                   stopper))))
> 
> (defun scroll-note ()
>   (add-text-properties 31 32 (scroll-note-property)))
> 
> (scroll-note)
> -----8<----8<---------8<----8<----

Thanks, but I couldn't use this recipe to try to reproduce the
problem.  First there are too many closing parentheses after
"stopper".  More importantly, I cannot find the function
scroll-note-property in Emacs, and no package called annotate.el.

So it seems like some details are missing from the recipe.