When tasks are reordered in Gantt duplicated requests are sent for updating.
For example, in case two tasks on the same level are changing their places, four requests are sent, two by two the requests are the same.
In case a task is moved on a different level multiple requests are sent, as all are duplicated.
There should be no duplicated requests when reordering tasks in Gantt
This is a regression introduced with R3 2020 (2020.3.915)