Cannot asign task to multiple Ids.

As seen in the code, you can assing a task to multiple ids by placing the ids as a variable separated by coma characters. But when this string is detected, the variable used in maestro_engine_version1.class function assignTask($queueId,$assignment) is different from the one used in the forearch

          if (strpos($assignId, ':') !== false) {
            $userIds = explode(':', $assignId);
          }
          else {
            $assignIds = array($assignId);
          }
          foreach ($assignIds as $assignId) {

The change would be changing $userIds variable name and us $userIds.

I think this error is in the 7.x-1.1-dev version.
P.S. Sorry about the name of the patch. I'm quite new and don't know how to give it an appropiate name,.