Webhook order/updated does not fire when saving metafield with a metaobject value added by clicking "Add new entry".
Steps to reproduce:
1. Add a metafield to Order referencing some metaobject
2. Make sure any change (ie. title, description or any metafield) triggers order/updated webhook
3. Enter value in the metafield created referencing a new value - by using "Add new entry" link
Expected: order/updated webhook gets triggered
Acutual: order/updated webhook does not trigger
