"Print Return Label" button on a Transfer is showed when `is_return_picking` field is True. But `is_return_picking` is True for any picking that is a return of another picking, making the button visible for the return of a return, when it should not as it is an outgoing picking. opw-2312425 closes odoo/odoo#59387 X-original-commit: f54f485cc6b0eb6c25a2753ca2c764a32eb18f66 Signed-off-by: Anh Thao PHAM <kitan191@users.noreply.github.com>