Ticket #18183: 18183.diff

user.php

@@ -486 +486 @@
                         elseif ( preg_match('|^https?://|', $search) )
                                 $search_columns = array('user_url');
                         else
-                                $search_columns = array('user_login', 'user_nicename');
+                                $search_columns = array('user_login', 'user_nicename', 'display_name');
 
                         $this->query_where .= $this->get_search_sql( $search, $search_columns, $wild );
                 }