Do not use negative quantity for carrier cost computation
A little bit like #7104 (closed), the carrier cost computation on the sale should not use the return lines.
This instance will be upgraded to Heptapod 1.5.0rc (GitLab 16.11.1) on 2024-05-02 at 15:00 UTC+2
A little bit like #7104 (closed), the carrier cost computation on the sale should not use the return lines.