Default on current environment language when there is no customer set on
the current coupon.
opw-2339815
note: part of this forward-port was not necessary because it was done in
98678199a3
X-original-commit: odoo/enterprise@d00981fe8fcloses#58473closesodoo/odoo#58734
X-original-commit: f1b9ebe57f37bcfb271e00a7e9ba15a45493bd73
Signed-off-by: Nicolas Lempereur (nle) <nle@odoo.com>
This refactoring extracts parts of `sale_coupon` module to create a more
generic module called `coupon`. This new module can be extended in
different sales modules to implement functionalities specific to modules
that extend it.
An initial step to prepare the creation of coupon module. The main goal
is to just move the logic from sale_coupon to coupon. To come up with
less diff as possible, this rename/move step is beneficial for this
purpose.
Nicolas Lempereur