bug#64696: 30.0.50; indent-to inherits preceding text properties, including 'invisible

[Eli Zaretskii]

> From: Ihor Radchenko <yantar92@posteo.net>
> Cc: monnier@iro.umontreal.ca, 64696@debbugs.gnu.org
> Date: Fri, 21 Jul 2023 08:32:18 +0000
> 
> Ihor Radchenko <yantar92@posteo.net> writes:
> 
> And results also somehow depend on `indent-tabs-mode'.
> If I try
> 
> (defun yant/test-init-buffer ()
>   (switch-to-buffer (get-buffer-create "*Test*"))
>   (delete-other-windows)
>   (unless (eq major-mode 'outline-mode) (outline-mode))
>   (erase-buffer)
>   (indent-tabs-mode -1) ;; <<< do not indent using tabs
>   (insert "\n")
>   (insert "* Test\n")
>   (insert "word word\n")
>   (goto-char (point-min)))
> 
> With `indent-tabs-mode' disabled, running the test yields different
> results. (AFAIU, it should not).

Is this about indent-to or about current-column?  I'd like to see
first if there are any problems in current-column.