Checkout token does not exist

[michalina-graczyk]

Summary

As a edge case it is possible to see error that checkout token does not exist

Steps to reproduce

1. Add 3 items to the basket
2. Go to checkout
3. In checkout set quantity to 0 for all items
4. Current result: You will see a popup with button 'go back to store'
5. Click on the basket icon -> you still can see your removed items
6. Click on the 'checkout' button
   Result:
   

A link to a reproduction repository

No response

Output from envinfo

No response

[matteius]

This is the only checkout experience I get trying out the new storefront.

EDIT: I must have had it misconfigured with the old checkout URL, because I got the checkout page to render (although no payment options).