Ticket #39201: 39201.patch

src/wp-admin/includes/ajax-actions.php

@@ -246 +246 @@
                 wp_die( -1 );
 
         /** This filter is documented in wp-admin/user-new.php */
-        if ( ! is_super_admin() && ! apply_filters( 'autocomplete_users_for_site_admins', false ) )
+        if ( ! current_user_can( 'manage_network_users' ) && ! apply_filters( 'autocomplete_users_for_site_admins', false ) )
                 wp_die( -1 );
 
         $return = array();

src/wp-admin/user-new.php

@@ -225 +225 @@
  * @param bool $enable Whether to enable auto-complete for non-super admins. Default false.
  */
 if ( is_multisite() && current_user_can( 'promote_users' ) && ! wp_is_large_network( 'users' )
-        && ( is_super_admin() || apply_filters( 'autocomplete_users_for_site_admins', false ) )
+        && ( current_user_can( 'manage_network_users' ) || apply_filters( 'autocomplete_users_for_site_admins', false ) )
 ) {
         wp_enqueue_script( 'user-suggest' );
 }