For some reason, the computed Many2many or One2many field is not
received through the onchange RPC call when creating a new order, but
only once the order is saved. This makes the widget displaying previous
orders kind of useless. We use this workaround with the default value
in order to be sure to send the value in the default_get call.
We also display previous orders and the agressive alerts in edit mode.
Nicolas Martinelli
20a2bcd2f7