RxRecyclerViewAdapter.dataChanges(adapter) limited to observer onChanged()

[piatt]

The RecyclerAdapterDataChangeOnSubscribe observable created by the RxRecyclerViewAdapter.dataChanges method creates an AdapterDataObserver which only implements onChanged, which is only triggered by calling notifyDataSetChanged. For anyone calling notifyItemInserted, notifyItemRemoved, etc. to avoid rebinding the entire list, using RxRecyclerViewAdapter.dataChanges does not work.