- # MProject fall-back to their root MGroup
- # MGroup fall-back to their default_mmodule
- # Other entities do not fall-back
+ # * `MPackage`s fall back to their root `MGroup`.
+ # * `MGroup`s fall back to their `default_mmodule`.
+ # * `MClass`es, `MClassDef`s, `MProperty`s and `MPropDef`s fall-back to
+ # their introducing definition.
+ # * `MClassType`s fall back to their wrapped `MClass`.
+ # * `MVirtualType`s fall back to their wrapped `MProperty`.
+ # * `CallSite` fall back on the wrapped `MProperty`.
+ # * Other entities do not fall back.