Clean Tasks from DBMS when a Process is cancelled

When a process instance is cancelled, the human tasks are set to a status of Exited. The TaskCleanupProcessEventListener is not removing the task, i18ntext or people assignments from the database like it does when a process instance is completed.

It seems that the TaskCleanUpProcessListener removes only completed tasks and it does not clean the database when ksession.abortProcessInstance is called.