[fix] small inconsistency with deferred in dataset
[fix] small inconsistency with deferred in dataset

splbio/openerp-web,gisce/openerp-web,gisce/openerp-web,MarkusTeufelberger/openerp-web,vnc-biz/openerp-web,gisce/openerp-web,splbio/openerp-web,vnc-biz/openerp-web,splbio/openerp-web,MarkusTeufelberger/openerp-web,MarkusTeufelberger/openerp-web,vnc-biz/openerp-web,vnc-biz/openerp-web