Fix Settings on screen rotation

app/src/main/java/org/schabi/newpipe/settings/SettingsActivity.java

@@ -53,10 +53,12 @@ public class SettingsActivity extends AppCompatActivity {
             actionBar.setDisplayShowTitleEnabled(true);
         }
 
+        if (savedInstanceBundle == null) {
             getFragmentManager().beginTransaction()
                     .replace(R.id.fragment_holder, new SettingsFragment())
                     .commit();
         }
+    }
 
     @Override
     public boolean onOptionsItemSelected(MenuItem item) {