search by titular number

views/financial_contract_guarantee.xml

@@ -191,6 +191,9 @@
         />
         <field name="mode">primary</field>
         <field name="arch" type="xml">
+            <xpath expr="//field[@name='partner_id']" position="after">
+                <field name="titular_number"/>
+            </xpath>
             <xpath expr="//filter[@name='group_state']" position="after">
                 <filter
                     name="group_guarantee_rate"