An RPC call using an empty array of fields has not the same behavior on
the MockServer and the actual server:
- the MockServer returns only the 'id' field
- the actual server returns all the fields for the model
This is due to the fact that an empty array evaluates to a falsy value
in Python and evaluates to a thruthy value in JavaScript.
This commit restores the parity between the two.
closesodoo/odoo#36278
Signed-off-by: Aaron Bohy (aab) <aab@odoo.com>
