[FIX] possible race condition when creating the session file for the web server
[FIX] possible race condition when creating the session file for the web server


akretion/openerp-web,havt/openerp-web,akretion/openerp-web,havt/openerp-web,havt/openerp-web,havt/openerp-web,havt/openerp-web,akretion/openerp-web