Create the following hierarchy:
- Go to C or B - Press Rename - see Location (C.png, B.png)
- Go to A - Press Rename
- the Location is duplicated, see DoubleA.png
- this happens only for top level spaces (Sandbox, Blog, etc.)
- The only exception is when renaming/copying Main space, see mainSpaceException.png; so probably the bug is somehow related to this.