[fix] fixed some problems with m2o (too much on_change and "theorically unreachable state")
[fix] fixed some problems with m2o (too much on_change and "theorically unreachable state")


akretion/openerp-web,havt/openerp-web,havt/openerp-web,akretion/openerp-web,havt/openerp-web,havt/openerp-web,havt/openerp-web,akretion/openerp-web