Rails 4.0 upgrade

When rendering app/views/form_section/edit.html.erb it call field.new? to render the fields
But in couchrest 0.34 this was always false because the CastedModel are marked as saved even
the form section is not saved. For couchrest 1.1.3 change that and field.new? return the value
based on the parent object, so in order to rendering the field should save the form section.