Exceptions thrown by Iterator.next() cannot be caught by the observer whe

[Hezj]

When trying to pass an Iterable to Observable.from() and it's Iterator.next() throws an exception, the observer subscribed or doOnError() method can't catch the exception

[LalitMaganti]

Pretty sure this is what #3862 is addressing.

[Hezj]

my fault.will close.