How to ensure the process execution restarts along with restarting the last safe point (Human Task) even though it was completed before an Exception takes place?

Issue

• The How to handle Exception in jBPM5? article state that: "As long as you use LocalTaskService+SyncWSHumanTaskHandler, process instances and tasks are consistent so you will be able to continue the process from the last committed state." Considering this condition, there is a process definition which has a Service Task right after a User Task node and after the User Task node is completed when the Service Task was getting executed, a RuntimeException takes place. In this scenario it is seen that jBPM 5 engine rolls back all transactions back to the last safe point (which is a completed Human Task node). But, how to get the process instance to start again by restarting the last safe point (Human Task) even though it was completed? If the last safe point was a message or signal event then it can send another message into the process instance to start it again. In case of running the process instance through Business Central Console will it be possible to resume the process execution in case the above scenario takes place?