Ticket #25879: 25879-2.patch

wp-admin/includes/template.php

@@ -700 +700 @@
  */
 function page_template_dropdown( $default = '' ) {
         $templates = get_page_templates();
+        $templates = apply_filters( 'page_template_dropdown', $templates, $default );
         ksort( $templates );
         foreach (array_keys( $templates ) as $template )
                 : if ( $default == $templates[$template] )