Relating references not changed after changing something's id

[Aetherus]

When a task's id is changed, the sourceRef or targetRef attributes of the SequenceFlows that starts from or ends to the task do not change accordingly. This leads to deployment error, and the SequenceFlows become invisible after closing and reopening the bpmn file in the designer.

Also when the id of a whole process is changed, the processRef attribute of the pool does not change. Though this may not cause error, it blanks out the whole canvas in the designer.

My environment:
Activiti Designer 5.14.0
Eclipse Kepler