Is this the right way to clean-up Fragment back stack when leaving a deeply nested stack?I'm using the Android Compatibility library to implement fragments and have extended the layout sample so that a fragment contains a button which fires off another fragment. In the selection pane on the left I have 5 selectable items - A B C D E. Each loads up a fragment (via FragmentTransaction:replace) in the details pane - a b c d e Now I've extended fragment e to contain a button which loads u
