Bug: org-agenda-open-link disallow permanenly changing point position while opening some links (e.g. elisp:) [9.3 (release_9.3 @ /home/yantar92/.emacs.d/straight/build/org/)]

[Ihor Radchenko]

Remember to cover the basics, that is, what you expected to happen and
what in fact did happen.  You don't know how to make a good report?  See

     https://orgmode.org/manual/Feedback.html#Feedback

Your bug report will be posted to the Org mailing list.
------------------------------------------------------------------------

Recipe:

1. emacs -Q
2. Open the following org file


* TODO 1
elisp:end-of-buffer
** TODO 2
blah

3. M-x org-agenda < t
4. Move point to "TODO 1" in agenda
5. C-c C-o yes

Expected behaviour:

The point in the org file moves to the end of the file

Observed behaviour:

The point does not move

The cause of the observed behaviour is the following code in
org-agenda-open-link:

(with-current-buffer buffer
  (setq trg (and (string-match org-link-bracket-re l)
 (match-string 1 l)))
  (if (or (not trg) (string-match org-link-any-re trg))
      (org-with-wide-buffer
       (goto-char marker)
       (when (search-forward l nil lkend)
 (goto-char (match-beginning 0))
 (org-open-at-point)))
    ;; This is an internal link, widen the buffer
    (switch-to-buffer-other-window buffer)
    (widen)
    (goto-char marker)
    (when (search-forward l nil lkend)
      (goto-char (match-beginning 0))
      (org-open-at-point))))

The code opens the link in two ways depending whether the link is
"internal link" or not. If it is not "internal", following the link is
enclosed into save-excursion (from org-with-wide-buffer). Thus, the
moving point does not have any effect when following some links

In my real life scenario, I have a custom link, which executes some
elisp to add a new row in a table from the current item and move the
point to that table. However, there is no way to keep the point position
with the current org-agenda-open-link implementation, unless the
condition for "internal link" is broadened.

Best regards,
Ihor



Emacs  : GNU Emacs 27.0.50 (build 1, x86_64-pc-linux-gnu, X toolkit, cairo 
version 1.16.0)
 of 2019-12-17
Package: Org mode version 9.3 (release_9.3 @ 
/home/yantar92/.emacs.d/straight/build/org/)
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