make changes public

Author: mvorisek

src/Form/Control/Multiline.php

@@ -162,7 +162,7 @@ class Multiline extends Form\Control
     public $rowFields;
 
     /** The changes set by self::setInputValue(). */
-    protected TheirChanges $changes;
+    public TheirChanges $changes;
 
     /** @var int The max number of records (rows) that can be added to Multiline. 0 means no limit. */
     public $rowLimit = 0;