[IMP] view_form: do not display hugly error message when name_get returns no value but more helpful message (eg: bad default value returns wrong id)
[IMP] view_form: do not display hugly error message when name_get returns no value but more helpful message (eg: bad default value returns wrong id)

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