[receiver.getParameters](https://w3c.github.io/webrtc-pc/#dom-rtcrtpreceiver-getparameters) has this non-normative note:  It suggests that post sRD(answer), `receiver.getParameters().codecs` is updated to only reflect what's been negotiated. But I can't find any normative steps to support this note: - [[ReceiveCodecs]] is [initialized]() to _"the [list of implemented receive codecs](https://w3c.github.io/webrtc-pc/#dfn-list-of-implemented-receive-codecs) for kind"_ - [[ReceiveCodecs]] is only ever assigned to [[LastStableStateReceiveCodecs]] (on rollback) - [[ReceiveCodecs]] does not appear to ever be modified - The "enabled" flag is only ever set to true Is the note wrong or are we missing some normative steps? What was the intent?