[FIX] account: Fix price_unit sign in taxes computation

Since the base in compute_all could be negative but is signed to perform the computation,
the price_unit should follow the same logic and be signed when evaluating a python tax.
Before this commit, the price_unit was equivalent to the base line balance and then, was negative
in case of a customer invoice.

E.g. For an out_invoice of 100, the price_unit is 100 but the balance is -100 for the base line.
Then, the computation is done using a base of 100 but having a sign of -1. However, when evaluating
a python tax dependent of the price_unit (here the balance), the price_unit was negative and then,
the tax amount will have a wrong sign at the end.

0 files changed, 0 insertions, 0 deletions