Preconditions:

Added two tags e.g 1 and 2 (tag 1 is a parent tag of tag 2).

Steps to reproduce

1. Log in to back office.
2. Go to Content / Tags.
3. In tree view expand options for tag 2.
4. Select an option 'Move'.
5. Observe page elements.

Actual result:

Page elements are messed up when move option is used in content tree.

Expected result:

Page elements from content tree are displayed in the right place.