I have added a global discount rate to account.invoice.

This is the field definition:

        early_payment_discount_rate = fields.Float(

                string = 'Discount Rate (%)',

                store = True,

                translate = True,

                help = "Early payment discount applied to total (before taxes).",

        )

Field works fine, if changed I can see change propagated in the GUI and in the database record, but for some reason if I change the value to 0.00 or to 0 I got a 10.0 value in the database.

Does anyone know why this could be happening?