When I call this method:

     @StartTask()
     public String beginReviewTask(){
          currentOrg = getCurrentOrganization();
          System.out.println("beginReviewTask() returning " + mTask.getName());
          orgId = (Long)(taskInstance.getVariable("orgId"));
          return "/orgAdminReview.xhtml";

and then click the BACK button, I get this error:

Caused by: java.lang.IllegalStateException: task instance '16' is already started

Best practice for avoiding this? I'm not sure what the isOpen and other methods do on the TaskInstance object. Do I need to do this myself or is there something in the @StartTask annotation I can set?

Best practice here?