Overlay is not replaced after adding it multiple times

[Psijic]

Currently overlays are not replaced and you can add multiple clones.
Suppose, it needs to change List<Overlay> overlays(); to Set and rewrite overlays hash and equals methods like in data class at least.
Need to use such construction for every overlay now:

 val indexToRemove = mapView.overlays.indexOfFirst { it is RadiusMarkerClusterer }
 if (indexToRemove != -1) mapView.overlays[indexToRemove] = cluster else mapView.overlays.add(cluster)

[emandtf]

I don't think it's a bug.
Calling to "List overlays()" must be disallowed outside osmdroid library.
You can manage Layers by using normal List methods (add, remove, get, set, etc...) and if you don't want to add a Layer twice, you have to prev remove the existent and then add it again like in any normal ArrayList.
Arrays or Lists normally allows clones without any issue.