Creating an issue so that we can chat about this, and decide (again) whether we should be doing anything differently.

See aspnet/SignalR#545 for some context. This was found by @anpete while trying to understand what Npgsql is doing around it.

We came to what we have (practically not doing anything) through a long and painful analysis, but unfortunately it is very hard (for me at least) to remember or find exactly what we decided.