SoBiT

Thanks for the info! Unfortunately, I've managed to get (very intermittent) segfaults using `proxy_pass` as well (e.g. my 2nd config scenario in the original post). Unlike the scenario without `proxy_pass`...

### 5. Fix crash when using X-Accel-Redirect with message forwarding When using X-Accel-Redirect to abstract a websocket pub/sub endpoint from the end client, combined with upstream message forwarding with `nchan_publisher_upstream_request`,...

### 6-7. Fix crash when multi-id pubsub is closed by timeout or HTTP DELETE When using multi-id pubsub endpoints, a variety of problems occurred upon the closing of the pubsub...

@aliqandil slact is currently regression-testing this, afaik. @jilles-sg Good catch, I fixed the uninitialized var. I also agree with your proposed change to the calling convention. I simply didn't want...