diff --git a/lisp/org.el b/lisp/org.el
index e12565931..9566f9389 100644
--- a/lisp/org.el
+++ b/lisp/org.el
@@ -13118,62 +13118,63 @@ decreases scheduled or deadline date by one day."
 	((not (stringp value)) (error "Properties values should be strings"))
 	((not (org--valid-property-p property))
 	 (user-error "Invalid property name: \"%s\"" property)))
-  (org-with-point-at pom
-    (if (or (not (featurep 'org-inlinetask)) (org-inlinetask-in-task-p))
-	(org-back-to-heading-or-point-min t)
-      (org-with-limited-levels (org-back-to-heading-or-point-min t)))
-    (let ((beg (point)))
-      (cond
-       ((equal property "TODO")
-	(cond ((not (org-string-nw-p value)) (setq value 'none))
-	      ((not (member value org-todo-keywords-1))
-	       (user-error "\"%s\" is not a valid TODO state" value)))
-	(org-todo value)
-	(org-align-tags))
-       ((equal property "PRIORITY")
-	(org-priority (if (org-string-nw-p value) (string-to-char value) ?\s))
-	(org-align-tags))
-       ((equal property "SCHEDULED")
-	(forward-line)
-	(if (and (looking-at-p org-planning-line-re)
-		 (re-search-forward
-		  org-scheduled-time-regexp (line-end-position) t))
-	    (cond ((string= value "earlier") (org-timestamp-change -1 'day))
-		  ((string= value "later") (org-timestamp-change 1 'day))
-		  ((string= value "") (org-schedule '(4)))
-		  (t (org-schedule nil value)))
-	  (if (member value '("earlier" "later" ""))
-	      (call-interactively #'org-schedule)
-	    (org-schedule nil value))))
-       ((equal property "DEADLINE")
-	(forward-line)
-	(if (and (looking-at-p org-planning-line-re)
-		 (re-search-forward
-		  org-deadline-time-regexp (line-end-position) t))
-	    (cond ((string= value "earlier") (org-timestamp-change -1 'day))
-		  ((string= value "later") (org-timestamp-change 1 'day))
-		  ((string= value "") (org-deadline '(4)))
-		  (t (org-deadline nil value)))
-	  (if (member value '("earlier" "later" ""))
-	      (call-interactively #'org-deadline)
-	    (org-deadline nil value))))
-       ((member property org-special-properties)
-	(error "The %s property cannot be set with `org-entry-put'" property))
-       (t
-	(let* ((range (org-get-property-block beg 'force))
-	       (end (cdr range))
-	       (case-fold-search t))
-	  (goto-char (car range))
-	  (if (re-search-forward (org-re-property property nil t) end t)
-	      (progn (delete-region (match-beginning 0) (match-end 0))
-		     (goto-char (match-beginning 0)))
-	    (goto-char end)
-	    (insert "\n")
-	    (backward-char))
-	  (insert ":" property ":")
-	  (when value (insert " " value))
-	  (org-indent-line)))))
-    (run-hook-with-args 'org-property-changed-functions property value)))
+  (org-no-read-only
+   (org-with-point-at pom
+     (if (or (not (featurep 'org-inlinetask)) (org-inlinetask-in-task-p))
+	 (org-back-to-heading-or-point-min t)
+       (org-with-limited-levels (org-back-to-heading-or-point-min t)))
+     (let ((beg (point)))
+       (cond
+        ((equal property "TODO")
+	 (cond ((not (org-string-nw-p value)) (setq value 'none))
+	       ((not (member value org-todo-keywords-1))
+	        (user-error "\"%s\" is not a valid TODO state" value)))
+	 (org-todo value)
+	 (org-align-tags))
+        ((equal property "PRIORITY")
+	 (org-priority (if (org-string-nw-p value) (string-to-char value) ?\s))
+	 (org-align-tags))
+        ((equal property "SCHEDULED")
+	 (forward-line)
+	 (if (and (looking-at-p org-planning-line-re)
+		  (re-search-forward
+		   org-scheduled-time-regexp (line-end-position) t))
+	     (cond ((string= value "earlier") (org-timestamp-change -1 'day))
+		   ((string= value "later") (org-timestamp-change 1 'day))
+		   ((string= value "") (org-schedule '(4)))
+		   (t (org-schedule nil value)))
+	   (if (member value '("earlier" "later" ""))
+	       (call-interactively #'org-schedule)
+	     (org-schedule nil value))))
+        ((equal property "DEADLINE")
+	 (forward-line)
+	 (if (and (looking-at-p org-planning-line-re)
+		  (re-search-forward
+		   org-deadline-time-regexp (line-end-position) t))
+	     (cond ((string= value "earlier") (org-timestamp-change -1 'day))
+		   ((string= value "later") (org-timestamp-change 1 'day))
+		   ((string= value "") (org-deadline '(4)))
+		   (t (org-deadline nil value)))
+	   (if (member value '("earlier" "later" ""))
+	       (call-interactively #'org-deadline)
+	     (org-deadline nil value))))
+        ((member property org-special-properties)
+	 (error "The %s property cannot be set with `org-entry-put'" property))
+        (t
+	 (let* ((range (org-get-property-block beg 'force))
+	        (end (cdr range))
+	        (case-fold-search t))
+	   (goto-char (car range))
+	   (if (re-search-forward (org-re-property property nil t) end t)
+	       (progn (delete-region (match-beginning 0) (match-end 0))
+		      (goto-char (match-beginning 0)))
+	     (goto-char end)
+	     (insert "\n")
+	     (backward-char))
+	   (insert ":" property ":")
+	   (when value (insert " " value))
+	   (org-indent-line)))))
+     (run-hook-with-args 'org-property-changed-functions property value))))
 
 (defun org-buffer-property-keys (&optional specials defaults columns)
   "Get all property keys in the current buffer.