Cannot find a Task which was created in the same transaction in JBoss BPM Suite

Issue

• When an application tries to create/find/cancel/reassign a Task in one transaction, he created Task cannot be found inside the transaction. It was possible in jBPM 3.

    tx.begin();

    ksession.startProcess("com.sample.bpmn.hello", null); // [Start]->[HT]->[End]

    TaskService taskService = runtime.getTaskService();
    {
        List<TaskSummary> list = taskService.getTasksAssignedAsPotentialOwner("john", "en-UK");
        for (TaskSummary taskSummary : list) {
            System.out.println("john has a task : taskId = " + taskSummary.getId());
        }
    }

    tx.commit();