Only set up task list if there is no existing fragment

astrid/src/com/todoroo/astrid/activity/TaskListActivity.java

@@ -278,6 +278,8 @@ public class TaskListActivity extends AstridActivity implements MainMenuListener
         Filter savedFilter = getIntent().getParcelableExtra(TaskListFragment.TOKEN_FILTER);
         if (getIntent().getIntExtra(TaskListFragment.TOKEN_SOURCE, Constants.SOURCE_DEFAULT) == Constants.SOURCE_NOTIFICATION)
             setupTasklistFragmentWithFilterAndCustomTaskList(savedFilter, NotificationFragment.class);
+        else if (getTaskListFragment() == null)
+            setupTasklistFragmentWithFilter(savedFilter);
 
         if (savedFilter != null)
             setListsTitle(savedFilter.title);