Fix "APPT_WARNTIME" inheritance

* lisp/org.el (org-refresh-properties): Handle inheritance from global
  values (e.g., from "#+PROPERTY:" keyword).
(org-refresh-property): Handle property inheritance with a new
optional argument.

* testing/lisp/test-org.el (test-org/refresh-properties): New test.

lisp/org.el

@@ -9735,31 +9735,39 @@ DPROP is the drawer property and TPROP is either the
 corresponding text property to set, or an alist with each element
 being a text property (as a symbol) and a function to apply to
 the value of the drawer property."
-  (let ((case-fold-search t)
-	(inhibit-read-only t))
+  (let* ((case-fold-search t)
+	 (inhibit-read-only t)
+	 (inherit? (org-property-inherit-p dprop))
+	 (property-re (org-re-property (concat (regexp-quote dprop) "\\+?") t))
+	 (global (and inherit? (org--property-global-value dprop nil))))
     (org-with-silent-modifications
-     (org-with-wide-buffer
-      (goto-char (point-min))
-      (while (re-search-forward (concat "^[ \t]*:" dprop ": +\\(.*\\)[ \t]*$") nil t)
-	(org-refresh-property tprop (match-string-no-properties 1)))))))
+     (org-with-point-at 1
+       ;; Set global values (e.g., values defined through
+       ;; "#+PROPERTY:" keywords) to the whole buffer.
+       (when global (put-text-property (point-min) (point-max) tprop global))
+       ;; Set local values.
+       (while (re-search-forward property-re nil t)
+	 (when (org-at-property-p)
+	   (org-refresh-property tprop (org-entry-get (point) dprop) inherit?))
+	 (outline-next-heading))))))
 
-(defun org-refresh-property (tprop p)
+(defun org-refresh-property (tprop p &optional inherit)
   "Refresh the buffer text property TPROP from the drawer property P.
-The refresh happens only for the current tree (not subtree)."
+The refresh happens only for the current headline, or the whole
+sub-tree if optional argument INHERIT is non-nil."
   (unless (org-before-first-heading-p)
     (save-excursion
       (org-back-to-heading t)
-      (if (symbolp tprop)
-	  ;; TPROP is a text property symbol
-	  (put-text-property
-	   (point) (or (outline-next-heading) (point-max)) tprop p)
-	;; TPROP is an alist with (properties . function) elements
-	(dolist (al tprop)
-	  (save-excursion
-	    (put-text-property
-	     (line-beginning-position) (or (outline-next-heading) (point-max))
-	     (car al)
-	     (funcall (cdr al) p))))))))
+      (let ((start (point))
+	    (end (save-excursion
+		   (if inherit (org-end-of-subtree t t)
+		     (or (outline-next-heading) (point-max))))))
+	(if (symbolp tprop)
+	    ;; TPROP is a text property symbol.
+	    (put-text-property start end tprop p)
+	  ;; TPROP is an alist with (property . function) elements.
+	  (pcase-dolist (`(,p . ,f) tprop)
+	    (put-text-property start end p (funcall f p))))))))
 
 (defun org-refresh-category-properties ()
   "Refresh category text properties in the buffer."

testing/lisp/test-org.el

@@ -4754,6 +4754,58 @@ Paragraph<point>"
 		   (org-entry-put (point) "A" "1")
 		   (buffer-string)))))
 
+(ert-deftest test-org/refresh-properties ()
+  "Test `org-refresh-properties' specifications."
+  (should
+   (equal "1"
+	  (org-test-with-temp-text "* H\n:PROPERTIES:\n:A: 1\n:END:"
+	    (org-refresh-properties "A" 'org-test)
+	    (get-text-property (point) 'org-test))))
+  (should-not
+   (org-test-with-temp-text "* H\n:PROPERTIES:\n:A: 1\n:END:"
+     (org-refresh-properties "B" 'org-test)
+     (get-text-property (point) 'org-test)))
+  ;; Handle properties only defined with extension syntax, i.e.,
+  ;; "PROPERTY+".
+  (should
+   (equal "1"
+	  (org-test-with-temp-text "* H\n:PROPERTIES:\n:A+: 1\n:END:"
+	    (org-refresh-properties "A" 'org-test)
+	    (get-text-property (point) 'org-test))))
+  ;; When property is inherited, add text property to the whole
+  ;; sub-tree.
+  (should
+   (equal "1"
+	  (org-test-with-temp-text
+	      "* H1\n:PROPERTIES:\n:A: 1\n:END:\n<point>** H2"
+	    (let ((org-use-property-inheritance t))
+	      (org-refresh-properties "A" 'org-test))
+	    (get-text-property (point) 'org-test))))
+  ;; When property is inherited, use global value across the whole
+  ;; buffer.  However local values have precedence.
+  (should-not
+   (equal "1"
+	  (org-test-with-temp-text "#+PROPERTY: A 1\n<point>* H1"
+	    (org-mode-restart)
+	    (let ((org-use-property-inheritance nil))
+	      (org-refresh-properties "A" 'org-test))
+	    (get-text-property (point) 'org-test))))
+  (should
+   (equal "1"
+	  (org-test-with-temp-text "#+PROPERTY: A 1\n<point>* H1"
+	    (org-mode-restart)
+	    (let ((org-use-property-inheritance t))
+	      (org-refresh-properties "A" 'org-test))
+	    (get-text-property (point) 'org-test))))
+  (should
+   (equal "2"
+	  (org-test-with-temp-text
+	      "#+PROPERTY: A 1\n<point>* H\n:PROPERTIES:\n:A: 2\n:END:"
+	    (org-mode-restart)
+	    (let ((org-use-property-inheritance t))
+	      (org-refresh-properties "A" 'org-test))
+	    (get-text-property (point) 'org-test)))))
+
 
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