Update on v4.0.1-beta2 (changes towards the next release)

Here's an update on the current version, which includes changes towards the next release still in development.

admin/src/Controller/FieldController.php

@@ -328,7 +328,7 @@ class FieldController extends FormController
 	 * Function that allows child controller access to model data
 	 * after the data has been saved.
 	 *
-	 * @param   BaseDatabaseModel  &$model     The data model object.
+	 * @param   BaseDatabaseModel  $model     The data model object.
 	 * @param   array              $validData  The validated data.
 	 *
 	 * @return  void