Broken RAW and MBOX in mailing list archives web interface

Hi,
I tried to copy the next message
https://www.postgresql.org/message-id/e1791b4c-df9c-be02-edc5-7c8874944be0%402ndquadrant.com
and both "Raw Message" and "Download mbox" give me "An internal server 
error occurred." message.
It makes it impossible to reply to this message in the thread without 
manual tweaking of the "In-Reply-To" mail header
as per https://wiki.postgresql.org/wiki/Mailing_Lists
Currently it is broken in every PostgreSQL mailing lists archive.

Thank you,

Sergei Agalakov