bugfix #3088 - bulk edit - make UI survive upon split screen

app/src/main/java/de/danoeh/antennapod/dialog/EpisodesApplyActionFragment.java

@@ -123,6 +123,7 @@ public class EpisodesApplyActionFragment extends Fragment {
     @Override
     public void onCreate(Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);
+        setRetainInstance(true);
         setHasOptionsMenu(true);
     }