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

[Ihor Radchenko <yantar92@posteo.net>]

Ihor Radchenko <yantar92@posteo.net> writes:

> (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)
>   (insert "\n")
>   (insert "* Test\n")
>   (insert "word word\n")
>   (goto-char (point-min)))

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).

-- 
Ihor Radchenko // yantar92,
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