fetchmail mail_gateway don't accept attachment 6.0.3

[xavinsky]

Openerp 6.0.3. Module Fetchmail.

  It's working when I send a simple mail.
my mail is fetched.
  When my mail have an attachment.
It's fail with this message.
WARNING:pop:[02]: Error occurred while validating the field(s) name,parent_id,res_model,res_id: File name must be unique!

  In the code it's the line in mail_gateway/mail_gateway.py
attachments.append(att_obj.create(cr, uid, {'res_model':case._name,'res_id':case.id,'name': att[0], 'datas': base64.encodestring(att[1])}))
that's don't work... the name att[0] seem correct...
I need another module for that's work ? or a config ?

  Module installed :
base
base_action_rule
base_calendar
base_setup
board
crm
document
document_webdav
fetchmail
knowledge
mail_gateway
process
resource
web_livechat

[xavinsky (xavinsky)]

sorry, It's no the good place for this bug.
I post in again in addons bugs.
https://bugs.launchpad.net/openobject-server/+bug/892273