Ticket #10441: 10441.3.diff

src/wp-includes/plugin.php

@@ -674 +674 @@
  */
 function apply_filters_deprecated( $tag, $args, $version, $replacement = false, $message = null ) {
         if ( ! has_filter( $tag ) ) {
-                return;
+                return $args[0];
         }
 
         _deprecated_hook( $tag, $version, $replacement, $message );