Redmine

I am having a problem moving parent task between version numbers. Suppose you have a list of issues with parent and subtasks. You then group these issues by version number, to render a hierarchy like so:

Version 1.0

Backlog
Parent task 1
Parent task 2
- Subtask 2.1
- Subtask 2.2
Parent task 3

If you then Ctrl-click parent task 2 and change it's version number from Backlog to Version 1.0. Here's what happens:

Version 1.0
Parent task 2

Backlog
Parent task 1
Subtask 2.1
Subtask 2.2
Parent task 3

Notice that Subtask 2.1 and Subtask 2.2 have been left behind! I think it makes sense that if you move a Parent task, all subtasks should follow.