Render from payment//payment_acquirer.py promises:
All templates will receive:
'feedback_url', 'return_url', 'cancel_url', 'error_url'
However they are all in -> FIXME.
After 6 years in FIXME, this promise is still a lie.
It is unfortunate since the Adyen payment provider requires 'return_url' to work.
Before, this function was called by _get_shop_payment_values,
which provided a value for it.
We copy the value that was given there directly as a default in render,
so that it doesn't crash no matter what method calls it.
opw 1928918
opw 1944142
closesodoo/odoo#31814
Signed-off-by: Nans Lefebvre (len) <len@odoo.com>
Nans Lefebvre
fc1389f8d8