Merge pull request #1849 from TomHennen/fix1848

fixes AntennaPod/AntennaPod#1848

app/src/main/java/de/danoeh/antennapod/fragment/SubscriptionFragment.java

@@ -54,6 +54,11 @@ public class SubscriptionFragment extends Fragment {
     public void onCreate(Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);
         setRetainInstance(true);
+
+        // So, we certainly *don't* have an options menu,
+        // but unless we say we do, old options menus sometimes
+        // persist.  mfietz thinks this causes the ActionBar to be invalidated
+        setHasOptionsMenu(true);
     }
 
     @Override