Hi!
I just started working on duplicating a task tree including its dependencies and something is a bit confusing. I was about to duplicate the dependencies (predecessors and successors) of the original task before adding the duplicated task to the taskStore, and I stumbled on already existing dependencies in the duplicate. Let me illustrate:
- Start with the Basic Demo
- Put the gantt instance on window: window.gantt = new Gantt(...
- Delete the root task
- Now in the console, add a new root task:
var rootTask = gantt.taskStore.rootNode.appendChild({ name : 'New task' }) - Right click that new task, and add a new subtask
- Then right that task, and add a new one below
- Edit the two subtasks and add some duration
- Then drag a dependency from the end of the first subtask to the start of the second
- Now in the console, copy the root task:
var duplicate = rootTask.copy({deep: true}) 
Then look at duplicate.children[0].successors. There's one, and its fromTask and toTask properties are pointing to the original tasks!- Add the duplicate to the taskStore:
gantt.taskStore.add(duplicate) - Take another look at duplicate.children[0].successors. Now there is none! And indeed none is shown in the chart.
Not sure if that's intended or not 
I was expecting the duplicated task to have no successor or predecessor.
