PXD-2310 ⁃ find out how to trigger "400 invalid status value" error for indexd GET /{GUID} endpoint

[philloooo]

The indexd Swagger docs list "400 invalid status value" as one possible response for the GET /{GUID} endpoint. But we are not sure whether/when/how this is supposed to happen. Was not immediately clear from the code... If necessary, perhaps remove from docs?