Ticket #19581: 19581.2.diff

wp-includes/comment-template.php

@@ -1918 +1918 @@
 
         $r = wp_parse_args( $args, $defaults );
 
+        /**
+         * Filter the arguments used in retrieving the comment list.
+         *
+         * @since 4.0.0
+         *
+         * @param array $r An array of arguments for displaying comments.
+         */
+        $r = apply_filters( 'wp_list_comments_args', $r );
+
         // Figure out what comments we'll be looping through ($_comments)
         if ( null !== $comments ) {
                 $comments = (array) $comments;