When cloning the initial deployment settings policy all task/jobs included will be cloned.
After cloning all jobs/tasks would be cloned with the same name in respective Jobs folder location:
Reproduced on 8.6 RU2 and RU3
This issue has been fixed in ITMS 8.7 with new feature.
ITMS 8.7 have new option is added to the existing clone approach allowing not to clone the associated jobs and tasks:
Also, it is possible to create an empty Initial Deployment.