If a form view contains the field 'display_name', when creating a new record, the initial value of 'display_name' is the string "False", and that weird value also appears in the breadcrumb instead of "New". In order to avoid this unexpected behavior, the conversion of a value to a display name should be False, like any other field would. closes odoo/odoo#81788 Signed-off-by: Raphael Collet <rco@odoo.com>