[fix] problem with boolean search fields
[fix] problem with boolean search fields

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