[FIX] point_of_sale: return with rounding < 0.01

- Set the currency to a rounding of 0.001
- Create a POS order:
  Unit Price: 0.12
  Quantity: 0.1
- Pay and validate
- From the backend, return the products on the create order
- Click on 'Payment'

The proposed amount is 0.01, not 0.012. It is not possible to complete
the payment process since the field is rounded at DB level to 2 digits
of precision.

We make consistent the `amount` field with the various amounts on the
`pos.order`. By using a `digits=0` and forcing the rounding, we avoid
inconsistent rounding between the order and the payment.

opw-1864344

0 files changed, 0 insertions, 0 deletions