@Override
    public void changeCursor(Cursor cursor) {
        super.changeCursor(cursor);
        resetMappings();
    }
Changes Cursor and clears list-Cursor mapping.

@see android.widget.CursorAdapter#changeCursor(android.database.Cursor)
third_party/DragSortListView/src/com/mobeta/android/dslv/DragSortCursorAdapter.java