"A task that spans across multiple sprints should have the same ID and TASKID, but, you can add a suffix to the task name as "Part I", "Part II", "Part III" etc. across sprints. This helps to track the total time spent on a task."
I will go through the previous sprints, and will update the ID and TASKID for those tasks that span across sprints.
Please keep this in mind when you send PR for future sprints.