Set unit_price for output moves diferent than production product

issue5462
review22941002

production.py

@@ -429,6 +429,8 @@ class Production(Workflow, ModelSQL, ModelView):
                 if product == self.product:
                     move.unit_price = Decimal(
                         cost / Decimal(str(quantity))).quantize(digit)
+                else:
+                    move.unit_price = Decimal(0)
                 move.save()
         self._set_move_planned_date()