When a ObservableCombineLatest is disposed, is there any particular reason why it does not dispose all of it's observers? i'm seeing getAndIncrement() be non-zero and that observer is not receiving any more events, so a memory leak is caused
https://github.com/ReactiveX/RxJava/blob/2.x/src/main/java/io/reactivex/internal/operators/observable/ObservableCombineLatest.java#L128