Ticket #39451: 39451.diff

src/wp-includes/widgets/class-wp-widget-links.php

@@ -48 +48 @@
                 $order            = $orderby == 'rating' ? 'DESC' : 'ASC';
                 $limit            = isset( $instance['limit'] ) ? $instance['limit'] : -1;
 
-                $before_widget = preg_replace( '/id="[^"]*"/', 'id="%id"', $args['before_widget'] );
+                $before_widget = preg_replace( '/ id="[^"]*"/', ' id="%id"', $args['before_widget'] );
 
                 $widget_links_args = array(
                         'title_before'     => $args['before_title'],