Apache2::Request param repetitions

Hi,

I am using the param method to retrieve form data.  I have a checkbox
field called user_status which has three values:  Active, Inactive and 
Deleted.
If all three boxes are checked and the form is submitted, the user_status
field is returned by the param method three times.  This seems redundant and
am wondering if this was intended or a bug. 

Apache 2.2.3
mod_perl 2.0.2
libapreq 2.0.8

Thanks,
Ted

Code looks like this:
--------------------
my $ar = Apache2::Request->new($r);
foreach $key ($ar->param()) {
    if ($key eq 'user_status') {
        warn "$key\n";
        foreach ($ar->param($key)) {
           warn "-- $_\n";
        }
    }
}

Output looks like this:
----------------------
user_status
-- Active
-- Inactive
-- Deleted
user_status
-- Active
-- Inactive
-- Deleted
user_status
-- Active
-- Inactive
-- Deleted