I am following https://www.odoo.com/documentation/user/9.0/point_of_sale/shop/refund.html

When I set the item to to -1 and click validate I get a warning about please confirm large amount even though the product is only -$0.74. I click Confirm and then validate. All is fine and the return goes through. But i can not close the session as the -0.74 had a status of new. The message I get is You cannot confirm all orders of this session, because they have not the 'paid' status