[FIX] partner_risk_insurance: Error in sorted method if partner has n…

…ot country

TT51481

partner_risk_insurance/templates/invoice_risk_insurance_template.xml

@@ -19,7 +19,7 @@
                         </tr>
                         <t
                             t-set="moves"
-                            t-value="docs.sorted(lambda doc: (is_insured_partner(doc), doc.commercial_partner_id.country_code, doc.name))"
+                            t-value="docs.sorted(lambda doc: (is_insured_partner(doc), doc.commercial_partner_id.country_code or '', doc.name))"
                         />
                         <t t-foreach="moves" t-as="move">
                             <t