Allow exporting local roles stored as unicode objects.

git-svn-id: https://svn.erp5.org/repos/public/erp5/trunk@44250 20353a03-c40f-0410-a6d1-a30d3c3de9de

product/ERP5/Document/BusinessTemplate.py

@@ -4203,6 +4203,8 @@ class LocalRolesTemplateItem(BaseTemplateItem):
       xml_data += '\n  </role>'
     xml_data += '\n </local_roles>'
     xml_data += '\n</local_roles_item>'
+    if isinstance(xml_data, unicode)
+      xml_data = xml_data.encode('utf8')
     return xml_data
 
   def export(self, context, bta, **kw):