Ticket #14541: 14541.dff

Index: template.php
===================================================================
--- template.php        (revision 27070)
+++ template.php        (working copy)
@@ -943,6 +943,7 @@
  * @param string $id String for use in the 'id' attribute of tags.
  * @param string|object $screen The screen on which to show the box (post, page, link).
  * @param string $context The context within the page where the boxes should show ('normal', 'advanced').
+ * @return boolean False on failure, true on success.
  */
 function remove_meta_box($id, $screen, $context) {
        global $wp_meta_boxes;
@@ -961,8 +962,14 @@
        if ( !isset($wp_meta_boxes[$page][$context]) )
                $wp_meta_boxes[$page][$context] = array();
 
-       foreach ( array('high', 'core', 'default', 'low') as $priority )
-               $wp_meta_boxes[$page][$context][$priority][$id] = false;
+       foreach ( array('high', 'core', 'default', 'low') as $priority ) {
+               if ( isset($wp_meta_boxes[$page][$context][$priority][$id]) ) {
+                       $wp_meta_boxes[$page][$context][$priority][$id] = false;
+                       return true;
+               }
+       }
+
+       return false;
 }
 
 /**