Fix handling nested VISIBILITY properties

* lisp/org.el (org-set-visibility-according-to-property): Fix handling
  nested VISIBILITY properties.
* testing/lisp/test-org.el (test-org/set-visibility-according-to-property):
  New test.

Reported-by: Michael Maurer <maurer.michael@gmail.com>
<http://lists.gnu.org/r/emacs-orgmode/2018-01/msg00012.html>

lisp/org.el

@@ -1,7 +1,7 @@
 ;;; org.el --- Outline-based notes management and organizer -*- lexical-binding: t; -*-
 
 ;; Carstens outline-mode for keeping track of everything.
-;; Copyright (C) 2004-2017 Free Software Foundation, Inc.
+;; Copyright (C) 2004-2018 Free Software Foundation, Inc.
 ;;
 ;; Author: Carsten Dominik <carsten at orgmode dot org>
 ;; Maintainer: Carsten Dominik <carsten at orgmode dot org>
@@ -7023,20 +7023,22 @@ With a numeric prefix, show all headlines up to that level."
 	 (save-excursion
 	   (org-back-to-heading t)
 	   (outline-hide-subtree)
-	   (org-reveal)
-	   (cond
-	    ((equal state "folded")
-	     (outline-hide-subtree))
-	    ((equal state "children")
-	     (org-show-hidden-entry)
-	     (org-show-children))
-	    ((equal state "content")
-	     (save-excursion
-	       (save-restriction
-		 (org-narrow-to-subtree)
-		 (org-content))))
-	    ((member state '("all" "showall"))
-	     (outline-show-subtree)))))))
+	   (org-reveal))
+	 (cond
+	  ((equal state "folded")
+	   (outline-hide-subtree)
+	   (org-end-of-subtree t t))
+	  ((equal state "children")
+	   (org-show-hidden-entry)
+	   (org-show-children))
+	  ((equal state "content")
+	   (save-excursion
+	     (save-restriction
+	       (org-narrow-to-subtree)
+	       (org-content)))
+	   (org-end-of-subtree t t))
+	  ((member state '("all" "showall"))
+	   (outline-show-subtree))))))
    (unless no-cleanup
      (org-cycle-hide-archived-subtrees 'all)
      (org-cycle-hide-drawers 'all)

testing/lisp/test-org.el

@@ -6704,6 +6704,95 @@ CLOCK: [2012-03-29 Thu 10:00]--[2012-03-29 Thu 16:40] =>  6:40"
 	      (org-copy-visible (point-min) (point-max))
 	      (current-kill 0 t))))))
 
+(ert-deftest test-org/set-visibility-according-to-property ()
+  "Test `org-set-visibility-according-to-property' specifications."
+  ;; "folded" state.
+  (should
+   (org-test-with-temp-text
+       "
+* a
+:PROPERTIES:
+:VISIBILITY: folded
+:END:
+** <point>b"
+     (org-set-visibility-according-to-property)
+     (invisible-p (point))))
+  ;; "children" state.
+  (should
+   (org-test-with-temp-text
+       "
+* a
+:PROPERTIES:
+:VISIBILITY: children
+:END:
+** b
+<point>Contents
+** c"
+     (org-set-visibility-according-to-property)
+     (invisible-p (point))))
+  (should
+   (org-test-with-temp-text
+       "
+* a
+:PROPERTIES:
+:VISIBILITY: children
+:END:
+** b
+Contents
+*** <point>c"
+     (org-set-visibility-according-to-property)
+     (invisible-p (point))))
+  ;; "content" state.
+  (should
+   (org-test-with-temp-text
+       "
+* a
+:PROPERTIES:
+:VISIBILITY: content
+:END:
+** b
+<point>Contents
+*** c"
+     (org-set-visibility-according-to-property)
+     (invisible-p (point))))
+  (should
+   (org-test-with-temp-text
+       "
+* a
+:PROPERTIES:
+:VISIBILITY: content
+:END:
+** b
+Contents
+*** <point>c"
+     (org-set-visibility-according-to-property)
+     (not (invisible-p (point)))))
+  ;; "showall" state.
+  (should
+   (org-test-with-temp-text
+       "
+* a
+:PROPERTIES:
+:VISIBILITY: showall
+:END:
+** b
+<point>Contents
+*** c"
+     (org-set-visibility-according-to-property)
+     (not (invisible-p (point)))))
+  (should
+   (org-test-with-temp-text
+       "
+* a
+:PROPERTIES:
+:VISIBILITY: showall
+:END:
+** b
+Contents
+*** <point>c"
+     (org-set-visibility-according-to-property)
+     (not (invisible-p (point))))))
+
 
 (provide 'test-org)