Add optional column on tree view

issue10989
review374321002

view/quantity_issue_list.xml

@@ -2,6 +2,7 @@
 <!-- This file is part of Tryton.  The COPYRIGHT file at the top level of
 this repository contains the full copyright notices and license terms. -->
 <tree>
+    <field name="company" expand="1" optional="1"/>
     <field name="origin" expand="1"/>
     <field name="planned_date"/>
     <field name="state"/>