Re: [sr-dev] [kamailio/kamailio] topos_redis: record-route not updated in dialog key (redis) during re-invite (#2554)

The behaviour is according SIP specs, see `RFC 3261`, section `12.2 Requests within a Dialog`:

* https://tools.ietf.org/html/rfc3261#section-12.2

Relevant snippet:

``` Requests within a dialog MAY contain Record-Route and Contact header fields. However, these requests do not cause the dialog's route set to be modified, although they may modify the remote target URI. ```

I am not aware of any newer RFC amending that, if you know such, point it here.

Now, if one needs such behaviour out of SIP specs, I am fine to accept a contribution that makes it configurable with a modparam.

For the moment, I am going to label this as a request for enhancement. If nobody commits to implement it, it will be closed in the near future.