use invoice number as filename

git-svn-id: https://svn.erp5.org/repos/public/erp5/trunk@30127 20353a03-c40f-0410-a6d1-a30d3c3de9de

bt5/erp5_invoicing/SkinTemplateItem/portal_skins/erp5_invoicing/Invoice_viewAsODT.xml

@@ -750,6 +750,10 @@ AAA=</string> </value>
             <key> <string>expand</string> </key>
             <value> <int>0</int> </value>
         </item>
+        <item>
+            <key> <string>filename</string> </key>
+            <value> <string>object/aq_parent/getReference</string> </value>
+        </item>
         <item>
             <key> <string>id</string> </key>
             <value> <string>Invoice_viewAsODT</string> </value>

bt5/erp5_invoicing/bt/revision

-299
+300
\ No newline at end of file