New Form with one draft

The user access to a new form page and this form has one draft. Orbeon is going to ask the user if he wants to open the saved draft or open a form from scratch.
http://orbeonIP:port/orbeon/fr/{app}/{formName}/new and the second to create a new instance of the Form (new link).
Service Type: get
Servide Output: application/xml
Service Path: /crud/{app}/{form-name}/form/form.xhtml Orbeon POST request body:

<search >
    <drafts for-never-saved-document="true">only</drafts>
    <page-size>10</page-size>
    <page-number>1</page-number>
    <lang>en</lang>
</search>