
In my breed such a quirk would not be an issue at all. My eldest has one along her stop, as has my youngest her great great grandaughter. It is neither a fault nor a virtue.
I do know that these ridges/cow licks are fronwned upon in Dobermanns and one with thsi woudl not be considrered in the ring.
You need to ask within your breed if there is a problem with this feature, if not leave it alone.