[rt-users] Unexpected "CC" stuff in 4.0.4

[Jeff Blaine]

> Then it's not RT started Ccing that third party person, but most
> probably people pick him on reply. RT saves emails it sends out, you
> can view it and from headers figure out what happened.
>
> May be somebody added him as Cc and then removed from Cc.

I'm doing all the testing.  This is not some random weird
message from someone.

I made a new ticket to our-rt at our-rt-host.our.org with NO
CCs.

I got the autoreply.

I used email to reply to it, and ADDED a CC of foo at bar.com
in my mail program.

RT then shows:
==============================================================

                                Current watchers

                                    Requestors:
                                        Blaine, Charles J.

                                    Cc:
                                        none

   Add new watchers
   Type             Email
   [-        ]      [ foo at bar.com ]     <------ THIS SHOWS UP
   [-        ]      [             ]
   [-        ]      [             ]

==============================================================

I can reproduce this scenario at will.