[FIX] better fix for previous m2m kanban problem
[FIX] better fix for previous m2m kanban problem

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