ccollab commandline tool doesn't assign subscribed users

We use Code Collab with perforce, and I've done a little scripting to simplify commandline usage.   It works properly, but only the explicitly-added reviewers are added, subscribed users are not.  If the review is edited via the web the subscribed users are added automatically (as they should have been initially).



Collab commands used in the script are:

        ccollab --no-browser addchangelist new $_CL

        ccollab admin review participant assign last $_REVIEWER reviewer   # in a loop

        ccollab admin review finish last



Is there another way to do this that will handle the reviewers properly?



$ ccollab --version

ccollab v6.5.6508



Also, if anyone from SmartBear is monitoring this I have a few nits about commandline exit codes that I'd be happy to share  :)