Display contact subfolders with a different type of parentfolder in address book

1. Create a sub-folder of different type than their parent folder (e.g. contact folder under a note folder).
2. Open the address book.
3. Select the "Show Names from the:" drop-down.

Result: Result: the sub (contact) folder is not shown.
Expected Expected: sub contact folder is visible.

Note: this case also applies to public contact folders
Note2: In Outlook the folder can be used when the exchange view is enabled and the parent has another type.