Fixes issue #500 - Scrolling locks up after selecting 'Pinned'

app/src/main/java/fr/gouv/etalab/mastodon/activities/ShowAccountActivity.java

@@ -727,7 +727,7 @@ public class ShowAccountActivity extends BaseActivity implements OnPostActionInt
                             itemShowPined.setChecked(showPinned);
                             itemShowReplies.setChecked(show_replies);
                             itemShowBoosts.setChecked(show_boosts);
-                            return false;
+                            return true;
                         }
                     });
                     popup.show();