function account(AssignmentCountSet $deltarev)
 {
     $k = $this->type;
     if ($this->cid > 0 && ($k === "lead" || $k === "shepherd")) {
         $deltarev->{$k} = true;
         $ct = $deltarev->ensure($this->cid);
         ++$ct->ass;
         $ct->{$k} += $this->isadd ? 1 : -1;
     }
 }