TableColumn sorting not working for columns of boolean data with column grouping

It sorts the first time (false first) and then that's it, the triangle keeps on changing but no sort occurs



List<Boolean> data = new ArrayList(10);
        for (int i = 0; i < 10; i++) {
            data.add(new Boolean(i % 2 == 0));
        }
        TableView<Boolean> tv = new TableView<Boolean>();
        tv.getItems().setAll(data);

        TableColumn tc0 = new TableColumn("Parent");
        tv.getColumns().add(tc0);

        TableColumn<Boolean, Boolean> tc1 = new TableColumn<Boolean, Boolean>("Col1");
        tc1.setCellValueFactory(new Callback<CellDataFeatures<Boolean, Boolean>, ObservableValue<Boolean>>() {
            @Override
            public ObservableValue<Boolean> call(
                    CellDataFeatures<Boolean, Boolean> param) {
                return new ReadOnlyObjectWrapper<>(param.getValue());
            }
        });
        tc0.getColumns().add(tc1);

        TableColumn<Boolean, Boolean> tc2 = new TableColumn<Boolean, Boolean>("Col2");
        tc2.setCellValueFactory(new Callback<CellDataFeatures<Boolean, Boolean>, ObservableValue<Boolean>>() {
            @Override
            public ObservableValue<Boolean> call(
                    CellDataFeatures<Boolean, Boolean> param) {
                return new ReadOnlyObjectWrapper<>(param.getValue());
            }
        });
        tc0.getColumns().add(tc2);



        Scene scene = new Scene(tv, 300, 250);

        primaryStage.setTitle("Hello World!");
        primaryStage.setScene(scene);
        primaryStage.show();