Ticket #13393: 13393.diff

wp-admin/includes/template.php

@@ -3605 +3605 @@
                         <br class="clear" />
                 </div>
                 <?php endif;
-                if ( isset($column_screens) ) : ?>
+                if ( ! empty($column_screens) ) : ?>
                 <h5><?php echo apply_filters('columns_prefs_header', $default_text); ?></h5>
                 <div class="metabox-prefs">
                         <?php manage_columns_prefs($screen); ?>