[BUG] completion-at-point for [[* only works at end of line [9.5.2 (release_9.5.2-25-gaf6f12 @ /home/ignacio/repos/emacs/lisp/org/)]

[Ignacio Casso]

Hello,

The manual says in https://orgmode.org/manual/Internal-Links.html#DOCF25
(footnote 25), that in-buffer completion can be used to insert links
targeting a headline in current buffer. So a user can type [[* and C-M-i
and all headlines in the buffer are offered for completion.

However, that only works if [[* is the last thing in the line. If there
is something after point in that line, it fails with the following message:

  cl--assertion-failed: Assertion failed: (<= start (point)), #<marker at
  243 in foo.org>, 242

Or if there are only whitespaces after point, with the following message
instead:

  pcomplete-completions: Args out of range: "", 1, nil.


Regards,

--Ignacio



Emacs  : GNU Emacs 29.0.50 (build 18, x86_64-pc-linux-gnu, GTK+ Version 
3.24.20, cairo version 1.16.0)
 of 2022-03-26
Package: Org mode version 9.5.2 (release_9.5.2-25-gaf6f12 @ 
/home/ignacio/repos/emacs/lisp/org/)