In a Sale Order, it is possible to select an invoice address without a name. The partner of the transaction does not have a name, which leads to a traceback when trying to split the name. The idea is to force the name to be filled, with a fallback on the partner' parent name. OPW-3338406 closes odoo/odoo#125282 X-original-commit: 505109d4111208aaf934a31373e9abec2bb38ad7 Signed-off-by: Antoine Vandevenne (anv) <anv@odoo.com> Signed-off-by: Vallaeys Valentin (vava) <vava@odoo.com>