Ticket #17025: 17025.10.diff

src/wp-includes/author-template.php

@@ -458 +458 @@
                 }
 
                 if ( $args['show_fullname'] && $author->first_name && $author->last_name ) {
-                        $name = "$author->first_name $author->last_name";
+
+                        $full_name = $author->first_name. ' ' .$author->last_name;
+
+                        /**
+                        * Filters to modify author full name.
+                        *
+                        * @since 6.0.0
+                        *
+                        * @param string   $full_name  Full Name of the author default is ( $author->first_name. ' ' .$author->last_name )
+                        * @param object   $author     Author data in object format
+                        */
+
+                        $name = apply_filters( 'wp_list_author_full_name', $full_name, $author);
                 } else {
                         $name = $author->display_name;
                 }