multipart/mixed with checkgroups

Hi,

If multipart/mixed is used with checkgroups, it breaks all existing
implementations because the body of the message should currently
consist only of newsgroups.

However, multipart/mixed can be used with newgroup messages.  And
application/news-groupinfo can lack the "For your newsgroups file:"
line.


Wouldn't it be useful to declare that multipart/mixed SHOULD NOT be
used with checkgroups but that an implementation SHOULD process
checkgroups control articles as MIME messages and search for
an application/news-checkgroups entity?

It would then allow to eventually have the possibility to send
multipart checkgroups and therefore provide a description
of the hierarchy within a text/plain entity in the checkgroups
message.
(That possibility could be added in xx years when a successor
to USEFOR is written...)

-- 
Julien ÉLIE

« Travailler dur n'a jamais tué personne,
  mais pourquoi prendre le risque ? » (Edgar Bergen)