V3 handshaking state change doesn't use "connection_or_change_state()"
When an OR connection [acting as a server changes to state](https://github.com/torproject/tor/blob/8c23ac4ae713f7cce7cd7541d2ae635c50c7c062/src/core/or/channeltls.c#L1419) `OR_CONN_STATE_OR_HANDSHAKING_V3`, it does so by setting `conn->base_.state` directly and not using `connection_or_change_state()`, so afaict this state change is never passed to pubsub or to the channel object.
On the other hand, when changing to that same state [when acting as a client](https://github.com/torproject/tor/blob/8c23ac4ae713f7cce7cd7541d2ae635c50c7c062/src/core/or/connection_or.c#L2150), it does use `connection_or_change_state()` as expected.
This seems to me to be a bug, but maybe there was a good reason for doing it this way. Also it seems no one has complained about it since the code was added, so having it changed doesn't seem to be important. But documenting here anyways since someone may want to take a look at it at some point.
issue