Widen buffers for multi-occur

Bernt Hansen writes:

> The org-agenda multi-occur search command (C-c a /) does not return
> results on buffers that are currently narrowed if the search would
> normally match outside the narrowed region.  This prevents possible
> matches from being displayed.

lisp/ChangeLog

@@ -1,5 +1,8 @@
 2009-11-19  Carsten Dominik  <carsten.dominik@gmail.com>
 
+	* org.el (org-occur-in-agenda-files): Make sure none of the
+	buffers is narrowed.
+
 	* org-habit.el (org-is-habit-p): Add doc string.
 
 2009-11-18  Carsten Dominik  <carsten.dominik@gmail.com>

lisp/org.el

@@ -16663,7 +16663,12 @@ really on, so that the block visually is on the match."
 	(add-to-list 'files f 'append)
 	(add-to-list 'tnames (file-truename f) 'append)))
     (multi-occur
-     (mapcar (lambda (x) (or (get-file-buffer x) (find-file-noselect x))) files)
+     (mapcar (lambda (x)
+	       (with-current-buffer
+		   (or (get-file-buffer x) (find-file-noselect x))
+		 (widen)
+		 (current-buffer)))
+	     files)
      regexp)))
 
 (if (boundp 'occur-mode-find-occurrence-hook)