correction paths of reports

view/maintenance_service_tree.xml

@@ -3,8 +3,8 @@
      this repository contains the full copyright notices and license terms.-->
 <tree>
     <field name="code"/>
-    <field name="propietary" xexpand="1"/>
-    <field name="propietary_address" xexpand="1"/>
+    <field name="propietary"/>
+    <field name="propietary_address"/>
     <field name="sale_origin"/>
     <field name="sale_date"/>
     <field name="technical"/>