1. Migration sets in amount_total_2 the previous amount_total in case of
any failure

Do not control unique by same product but instead with list_price

Multiple payments with same product

See merge request !14

8.0 excluded financing

See merge request !13

1. Amount total of pos.order is now stored
2. Migration to fix the amount_total by what is stored in
price_subtotal_incl of line

fix hardcoding

See merge request !12

possibility to update possible financings or update some of them

See merge request !11