Remove parameter from request as it has been handled. This is needed because when there will be multiple listboxes on the same page with their subfields prefixed, updating the selection would not know which prefix to use, and would overwrite the value computed from selection tool with bare transmited value.
Not updating first/last variants since they are broken.


git-svn-id: https://svn.erp5.org/repos/public/erp5/trunk@21999 20353a03-c40f-0410-a6d1-a30d3c3de9de