[FIX] account: Fix payment's move_name when cancelling
[FIX] account: Fix payment's move_name when cancelling

Create a paiement, post it, cancel it, set it to draft, post it again:
The move_name has been incremented instead of staying the same as before.

-opw: 1919241
ygol/odoo,ygol/odoo,ygol/odoo,ygol/odoo,ygol/odoo,ygol/odoo,ygol/odoo