During exploratory tests, I noticed that after removing all products from the kit unpack list, it is not possible to save changes because there is no "Save" button.
Log into the application as administrator.
Go to Administration > Products and click the "View" button next to any product.
Click the "Create Kit Unpack List".
Add some products.
Remove all products from the list.
It isn't possible to save changes.
The "Save" button should be visible.
I tested the ticket, and the issue was fixed.