Version handling in credentialz.proto

[dhilipkr]

In gNSI, under authz, pathz, certz there seems to be an explicit mention to respond with a "ALREADY_EXISTS"/"AlreadyExists" when an RPC requests with the same version is being pushed again.
There seems to be a 'force_overwrite' flag that when set would ignore the above and allow the request even if the version is already in use.

There seems to be no such definition in credentialz.proto for the version string. Is this accidental or intentional? Is version and timestamp info only for telemetry data in credentialz? OR
Does credentialz also need to check the version in the incoming request and drop the request if the version already exists ? If so, is there a plan to add a 'force_overwrite' flag in credentialz.proto ?

Also, should version information from bootstrap configuration be persisted? or is it only required for Rotate RPC requests that come later after initial boot configuration?