Layer group can be moved into it's own sub group

[hm]

When modifying a Map in Maestro 4.0.2 if you by accident (or deliberately) drag a group into a subgroup beneath itself, the group and everything within it will disappear. If you open the map resource with the XML editor, the groups and their contents is still there, but for obvious reasons they are not listed any more. There should be some kind of check that a group cannot be moved into another group if the group being moved is in the parent/ancestor/hierarchy.

[hm]

Steps to reproduce Create a group named A Create another group name it B and place it under the group A like this: +A

+-B

Then drag the group A on top of group B, and both folders disappear. You can view the XML and see that group B has A as parent and group A has group B as parent. If you change the parent of one of the groups to "blank" they are visible again.

[jng]

Fixed trunk (r7011) and 4.0.x (r7013)

[hm]

It's been fixed that you cannot drag a group into one of it's own sub groups, but you can still drag a group into a sub group of itself. E.g. drag group name A below itself and it is gone.

[jng]

Fixed trunk (r7058) and 4.0.x (r7059)