stock.py

@@ -26,11 +26,8 @@ class Move(metaclass=PoolMeta):
     __name__ = 'stock.move'
 
     def check_lot(self):
-        ShipmentIn = Pool().get('stock.shipment.in')
         if (not self.product.lot_force_assign
-                or (
-                    (not self.origin or isinstance(self.shipment, ShipmentIn))
-                    and self.from_location.type == 'supplier')):
+                or self.from_location.type == 'supplier'):
             return super().check_lot()
 
     @classmethod