Mailing list archives redirect loop when Message-ID has slashes

The commit notification messages from GitHub recently changed their
Message-ID format to include the repository and couple other items
separated by slashes. Here's an example:
pgjdbc/pgjdbc/push/refs/heads/master/7b52b0-4cd3f0(at)github(dot)com

Pretty sure the messages are being archived correctly as they show up in
the search list, but you can't access any of them via the mailing list web
interface as all message specific URLs redirecting back to themselves:

$ curl --head
https://www.postgresql.org/message-id/pgjdbc/pgjdbc/push/refs/heads/master/5965f3-61cc27(at)github(dot)com/
HTTP/1.1 301 Moved Permanently
Content-Length: 0
Content-Type: text/html; charset=utf-8
Date: Mon, 18 Feb 2019 14:59:01 GMT
Server: lighttpd/1.4.45
location: /message-id/pgjdbc/pgjdbc/push/refs/heads/master/
5965f3-61cc27(at)github(dot)com
X-Varnish: 308386 337585
Age: 1183
Via: 1.1 varnish-v4
Strict-Transport-Security: max-age=31536000
Connection: keep-alive

Regards,
-- Sehrope Sarkuni
Founder & CEO | JackDB, Inc. | https://www.jackdb.com/