Drag Project and Auto Scheduling create unexpected scheduling

Gantt
#1

Hello,
http://snippet.dhtmlx.com/5/57816732e

Instruction to reproduce:

  1. Drag Project #1 to 02. April
  2. Drag Project #1 to the original position

The Project #1.1 will stay at the 02. April, my expected behavior was that the Project #1.1 sticks to the parent and also mooves back to 01. April.

This only occurs when autoscheduling is active.

Thanks for your help!

#2

Hello,
The issue occurs because the subtasks obtain the Start no Earlier Than constraint:
http://snippet.dhtmlx.com/5/bc1044b10

The dev team will fix the bug in the future, but I cannot give you any ETA.
As a workaround, you can remove the constraints from all children when you drag a project in the onTaskDrag event handler:
http://snippet.dhtmlx.com/5/0b99c22f9

#3

Hello,
The dev team fixed the bug when it wasn’t possible to drag a project task if its children are linked:
https://docs.dhtmlx.com/gantt/whatsnew.html#:~:text=The%20onAfterTaskUpdate%20event%20now%20fires%20before%20Auto%20Scheduling%20events%20after%20dragging%20tasks%20in%20the%20timeline

You can see that the bug is no longer reproduced in the following sample:
http://snippet.dhtmlx.com/5/7dd3d9b5c