Can't set Order Workflow Status back to Open

Overview:
Steps to Reproduce:

1. Log into bugfest.folio.ebsco.com as user 'cpu' (Cayce Pollard - fake user with full permissions)
2. Find existing Order with a status of Pending or Closed and select Edit
3. Change the Workflow Status to Open and select Save
   Expected Results:
4. Order will show up in the order list with a Workflow Status of Open
   Actual Results:
5. Workflow Status remains set to Closed or Pending
   Additional Information:
   I haven't tested every field, but other changes to the Order seem to be saving.
   Interested parties:
   dennisbridges