2.x: Observable marble fixes 01/08-b (#5797)
2.x: Observable marble fixes 01/08-b (#5797)


NiteshKant/RxJava,reactivex/rxjava,ReactiveX/RxJava,ReactiveX/RxJava,akarnokd/RxJava,NiteshKant/RxJava,reactivex/rxjava,artem-zinnatullin/RxJava,akarnokd/RxJava,artem-zinnatullin/RxJava