Take a submitted plan back to draft so it can be amended and resubmitted (FA_CPA_PA_15).

Take a submitted plan back to draft so it can be amended and resubmitted (FA_CPA_PA_15). Only its submitter can, and not once its approval has been given: an approved plan is refused with ALREADY_APPROVED while the approval is being carried out. A request still waiting is withdrawn with the reason, and every step it held stops asking.