http://mail.nexedi.com/pipermail/erp5-dev/2008-June/001967.html 

If "optional" arguments (ie. with default values) were not passed, then the
method crash, this change makes that default values are supported.



git-svn-id: https://svn.erp5.org/repos/public/erp5/trunk@22556 20353a03-c40f-0410-a6d1-a30d3c3de9de