[FIX] incorrect handling of saved filter group_by when not present or an array
[FIX] incorrect handling of saved filter group_by when not present or an array
gisce/openerp-web,vnc-biz/openerp-web,MarkusTeufelberger/openerp-web,gisce/openerp-web,vnc-biz/openerp-web,splbio/openerp-web,gisce/openerp-web,splbio/openerp-web,splbio/openerp-web,MarkusTeufelberger/openerp-web,vnc-biz/openerp-web,MarkusTeufelberger/openerp-web,vnc-biz/openerp-web