[all][interop][cinder][qa] API changes with/without microversion and Tempest verification of API interoperability
> Backend/type specific information leaking out of the API dynamically like
> that is definitely an interoperability problem and as you said it sounds
> like it's been that way for a long time. The compute servers diagnostics API
> had a similar problem for a long time and the associated Tempest test for
> that API was disabled for a long time because the response body was
> hypervisor specific, so we eventually standardized it in a microversion so
> it was driver agnostic.
Except this isn't backend specific information that is leaking. It's just
reflecting the configuration of the system.