Return Sale can not be done when vue_shop is active
When web_shop is active can not return the sale.
When the sale is returned, [0] a copy if the sale is done. But [1] set web_id to None and when web_shop is present web_id is required. To solve it after [1] can add [3] to create web_id.
[0] https://github.com/tryton/sale/blob/8441b7495e1aba749e07db59111ba3fd89a8e015/sale.py#L1987
[1] https://github.com/tryton/web_shop/blob/develop/sale.py#L46
[2] https://github.com/tryton/web_shop/blob/develop/sale.py#L38