[FIX] website_event_sale: free event

`price_reduce` is a computed field that depends on `price`.

opw-1961576

closes odoo/odoo#32800

Signed-off-by: Nicolas Martinelli (nim) <nim@odoo.com>

addons/website_event_sale/models/sale_order.py

@@ -41,7 +41,7 @@ class SaleOrder(models.Model):
             values['product_id'] = ticket.product_id.id
             values['event_id'] = ticket.event_id.id
             values['event_ticket_id'] = ticket.id
-            values['price_unit'] = ticket.price_reduce or ticket.price
+            values['price_unit'] = ticket.price_reduce
             values['name'] = "%s\n%s" % (ticket.event_id.display_name, ticket.name)
 
         # avoid writing related values that end up locking the product record