[FIX] group_by using old code
[FIX] group_by using old code
splbio/openerp-web,MarkusTeufelberger/openerp-web,MarkusTeufelberger/openerp-web,gisce/openerp-web,splbio/openerp-web,MarkusTeufelberger/openerp-web,gisce/openerp-web,gisce/openerp-web,splbio/openerp-web