Ticket #19999: 19999.diff

wp-includes/user.php

@@ -485 +485 @@
                                         $search_columns = array('user_email');
                                 elseif ( is_numeric($search) )
                                         $search_columns = array('user_login', 'ID');
-                                elseif ( preg_match('|^https?://|', $search) )
+                                elseif ( preg_match('|^https?://|', $search) && ! wp_is_large_network( 'users' ) )
                                         $search_columns = array('user_url');
                                 else
                                         $search_columns = array('user_login', 'user_nicename');