Duplicating a group within a group moves the duplicate to the top of the layers
When duplicating a group within a group, the newly created group will appear the the top of the tree. This is very annoying as you often want to duplicate grouped elements (eg buttons) within a group, while keeping the structure persistent. Having to move the group back into the group every time is very frustrating.
1. Create 2 rectangle and group them together.
2. Create two more, group them together, place them inside the first group
3. Duplicate the second group - this will now appear outside of the first group, at the top of the layer tree.
For the duplicated nested group (the second group created above) to appear above the group that has been duplicated.