Release of v4.0.3-alpha4

Fix database default fields to allow NULL. #1169. Fix the power list field to allow search. #1167. Expanded the Demo component in JCB v4 to include more advance features.

admin/src/Controller/Class_extendsController.php

@@ -62,6 +62,22 @@ class Class_extendsController extends FormController
 	 */
 	protected $view_list = 'class_extendings';
 
+	/**
+	 * Referral value
+	 *
+	 * @var    string
+	 * @since  5.0
+	 */
+	protected string $ref;
+
+	/**
+	 * Referral ID value
+	 *
+	 * @var    int
+	 * @since  5.0
+	 */
+	protected int $refid;
+
 	/**
 	 * Method override to check if you can add a new record.
 	 *