cvs, ssh and multiple authors with a single unix user id

[Christian Barmala]

Hi,

I have set up a cvs under ~cvsuser/cvsroot. Project members access the cvs
via ssh and public key authentication. I added
environment="LOGNAME=ProjectMember",environment="USER=ProjectMember" to
~cvsuser/.ssh/authorized_keys (see
http://www.oreilly.com/catalog/sshtdg/chapter/ch08.html#65720) and hoped
that $Header: $ would look like this: $Header: path,v version date
ProjectMember Exp $, but it actually shows "cvsuser" instead of
"ProjectMember".

Any Idea how to get this right?

Is it possible to even distinguish read/only and read/write access per user
in this type of setup?

Christian