Make org-cycle outline-mode compatible again

[Jonas Bernoulli <jonas@bernoul.li>]

Hello

While I realize I probably should not be using `org-cycle' in buffers in
which `outline-minor-mode' is enabled, I have been doing it for a long
time, and while that command certainly is overkill in such buffers, the
only problem I have run into is that I usually have to apply a tiny
patch to make it work.

That's what is currently necessary:

diff --git a/lisp/org.el b/lisp/org.el
index f1a573d35..7716c0961 100644
--- a/lisp/org.el
+++ b/lisp/org.el
@@ -6948,7 +6948,10 @@ (defun org-cycle-internal-local ()
       (if (org-at-item-p)
          (org-list-set-item-visibility (point-at-bol) struct 'children)
        (org-show-entry)
-       (org-with-limited-levels (org-show-children))
+       (org-with-limited-levels
+        (if (derived-mode-p 'org-mode)
+            (org-show-children)
+          (outline-show-children)))
        ;; FIXME: This slows down the func way too much.
        ;; How keep drawers hidden in subtree anyway?
        ;; (when (memq 'org-cycle-hide-drawers org-cycle-hook)

I am considering reviving `outline-cycle' from `outline-magic'
eventually, or writing something from scratch.  I don't remember the
details, but last time I tried using `outline-cycle' it gave me more
grieve than just patching `org-cycle-internal-local' as above.

I am hoping you will apply this patch or something similar.

  Thanks,
  Jonas