If adding a has many relation which points to itself, the result is 2 lists.
A Feature is related to other Featues (many to many).
If you add this, you will get 2 relations and boths are displayed in the feature. In that special case it makes no sense to show the other way around as well. But it depends on the role. e.g.
- ïs related’ works in both directions
- “is parent” / “is child” may require an own list.
If it would be possible to design the layout of pages and simply hide the second relation, it would help.