[FIX] stock_account: correct forward-port 251b2fdc

5ca0ef97 was forward-ported from 9.0. In 10.0 the function signature
of product.uom's _compute_price has changed. In 10.0 it uses the new
API and it no longer takes a to_uom_id keyword argument.

opw-816738

addons/stock_account/models/product.py

@@ -203,7 +203,7 @@ class ProductProduct(models.Model):
         price = self.standard_price
         if not uom or self.uom_id.id == uom.id:
             return price
-        return self.uom_id._compute_price(self.uom_id.id, price, to_uom_id=uom.id)
+        return self.uom_id._compute_price(price, uom)
 
 
 class ProductCategory(models.Model):