[7.0][audittrail] IndexError: list index out of range deleting a purchase.order

[Moisés López - http://www.vauxoo.com]

1) Steps to reproduce the issue you have observed
  -Install purchase & audittrail modules
  -Create a audittrail.log to purchase.order object (delete, create, write) and add users
  -Push button suscribe
  -Open a P.O. and try delete
Video with test case: http://youtu.be/uXVS8i3zEvY

2) The result you observed
traceback error
Client Traceback (most recent call last):
  File "/home/odoo/runbot/static/openerp-dev-7-0-13006/server/openerp/addons/web/http.py", line 204, in dispatch
    response["result"] = method(self, **self.params)
  File "/home/odoo/runbot/static/openerp-dev-7-0-13006/server/openerp/addons/web/controllers/main.py", line 1121, in call_kw
    return self._call_kw(req, model, method, args, kwargs)
  File "/home/odoo/runbot/static/openerp-dev-7-0-13006/server/openerp/addons/web/controllers/main.py", line 1113, in _call_kw
    return getattr(req.session.model(model), method)(*args, **kwargs)
  File "/home/odoo/runbot/static/openerp-dev-7-0-13006/server/openerp/addons/web/session.py", line 42, in proxy
    result = self.proxy.execute_kw(self.session._db, self.session._uid, self.session._password, self.model, method, args, kw)
  File "/home/odoo/runbot/static/openerp-dev-7-0-13006/server/openerp/addons/web/session.py", line 30, in proxy_method
    result = self.session.send(self.service_name, method, *args)
  File "/home/odoo/runbot/static/openerp-dev-7-0-13006/server/openerp/addons/web/session.py", line 103, in send
    raise xmlrpclib.Fault(openerp.tools.ustr(e), formatted_info)

Server Traceback (most recent call last):
  File "/home/odoo/runbot/static/openerp-dev-7-0-13006/server/openerp/addons/web/session.py", line 89, in send
    return openerp.netsvc.dispatch_rpc(service_name, method, args)
  File "/home/odoo/runbot/static/openerp-dev-7-0-13006/server/openerp/netsvc.py", line 292, in dispatch_rpc
    result = ExportService.getService(service_name).dispatch(method, params)
  File "/home/odoo/runbot/static/openerp-dev-7-0-13006/server/openerp/service/web_services.py", line 626, in dispatch
    res = fn(db, uid, *params)
  File "/home/odoo/runbot/static/openerp-dev-7-0-13006/server/openerp/osv/osv.py", line 188, in execute_kw
    return self.execute(db, uid, obj, method, *args, **kw or {})
  File "/home/odoo/runbot/static/openerp-dev-7-0-13006/server/openerp/osv/osv.py", line 131, in wrapper
    return f(self, dbname, *args, **kwargs)
  File "/home/odoo/runbot/static/openerp-dev-7-0-13006/server/openerp/osv/osv.py", line 197, in execute
    res = self.execute_cr(cr, uid, obj, method, *args, **kw)
  File "/home/odoo/runbot/static/openerp-dev-7-0-13006/server/openerp/addons/audittrail/audittrail.py", line 513, in execute_cr
    return self.log_fct(cr, uid, model, method, fct_src, *args, **kw)
  File "/home/odoo/runbot/static/openerp-dev-7-0-13006/server/openerp/addons/audittrail/audittrail.py", line 303, in log_fct
    self.process_data(cr, uid_orig, pool, res_ids, model, method, old_values, new_values, field_list)
  File "/home/odoo/runbot/static/openerp-dev-7-0-13006/server/openerp/addons/audittrail/audittrail.py", line 462, in process_data
    name = pool.get(model.model).name_get(cr, uid, [resource_id])[0][1]
IndexError: list index out of range

3) The result you expected
Item deleted and new log of deleted

4) The platform you are using (and browser version, if relevant)
http://7-0-13006.runbot.openerp.com/?db=7-0-13006-all

[Moisés López - http://www.vauxoo.com (moylop260)]

I comment this line 462 in code
I generated the same test and now I get a audit.log::delete of res.partner , but this partner exist, just delete a purchase.order.
This is other bug, too