To reset a password in OpenERP v7, I am following these steps :

Go to Settings -> Users -> Open any User Form -> Click on Send reset password link by email button -> it will send me a password reset mail -> I follow the given link -> Fill the password reset information and click on Reset button, it is giving me following error :

OpenERP WebClient Error

Client Traceback (most recent call last): File "/home/ratnadeep/server_ahmeds/openerp/addons/web/http.py", line 204, in dispatch response["result"] = method(self, **self.params) File "/home/ratnadeep/server_ahmeds/openerp/addons/auth_signup/controllers/main.py", line 57, in signup self._signup_with_values(req, dbname, token, values) File "/home/ratnadeep/server_ahmeds/openerp/addons/auth_signup/controllers/main.py", line 66, in _signup_with_values res_users.signup(cr, openerp.SUPERUSER_ID, values, token) File "/home/ratnadeep/server_ahmeds/openerp/addons/auth_signup/res_users.py", line 187, in signup partner.write({'signup_token': False, 'signup_type': False, 'signup_expiration': False}) File "/home/ratnadeep/server_ahmeds/openerp/osv/orm.py", line 374, in function_proxy return attr(self._cr, self._uid, [self._id], *args, **kwargs) TypeError: write() takes exactly 6 arguments (5 given)

In Odoo its working fine. Any clue / help please? 
I know we can change it from More menu on top, but for some reason, I need it in this way.