log spam with postgres_fdw

I'm sending this to hackers, because it is not exactly a bug, and it can't
be addressed from userland. I think it is a coding issue, although I
haven't identified the exact code.

When closing the local session which had used postgres_fdw over an ssl
connection, I get log spam on the foreign server saying:

LOG: could not receive data from client: Connection reset by peer

It is easy to reproduce, but you must be using ssl to do so.

On searching, I see that a lot of people have run into this issue, with
considerable confusion, but as far as I can see it has never been diagnosed.

Is there anything that can be done about this, other than just learning to
ignore it?

Cheers,

Jeff