A device has a configuration.
The data exists in `device-config.json` and is visible in the server UI.
The device gets decommissioned.
The device gets accepted.
The data exists in `device-config.json` but the UI of the server is empty.
Paraphrasing Fabio for a suggested fix:
If the data from which the hash is generated contains the JWT token this will make the device resend the configuration data once it re-authenticates.