Hi Claudio,
Both config and persistence are jobs which are run once. Patching them will result in a `immutable` error . In order to run them again if you have a good reason for that would be by removing them then installing again. Clean installation should work as expected but during the upgrade you shouldn't be running config nor persistence as the configuration and secret keys as well as the backend has already been configured.
We will add a section in the docs on updating with helm.
Thanks,
Mohammad