I don't understand the hole of oe_form_dirty use in web_form.js
Any body explain what is purpose when use this option?
In view_form.js
// If the form has not been modified, the view can only be valid
// NB: is_dirty will also be set on defaults/onchanges/whatever?
// oe_form_dirty seems to only be set on actual user actions
if (!form.$el.is('.oe_form_dirty')) {
return true;
}