When I use setEnabled method to ComponentContainer it updates state of cont

- Vaadin version
I use Vaadin version 7.1.13, but this problem is still reproduced in higher versions. For example problem also reproduced in Vaadin version 8.0.5

- Description of the bug
I suppose that the explanation in the code example would be enough to understand the problem.
I met this case in real situation when I tried to extend CustomComponent for my needs and only one solution I found is to use UI.getCurrent().push(); into implementation of CustomComponent. I don't really like this idea and I think there could be an other way to solve this problem correctly.

- Reproducible example
(Just create component using createReproducibleExample() method and click to Update table content button to see explanation

private static class Table extends VerticalLayout {
    private final List<Component> headers;

    private Table(final Component... headers) {
        this.headers = Arrays.asList(headers);
    }

    private void updateContent(final Component... rows) {
        removeAllComponents();

        if (false) {
            //In this case all works fine
            for (final Component component : headers) {
                addComponent(component);
            }
        } else {
            //In case with intermediate container logic works not as it is expected
            //UI.getCurrent().push(); //Uncommenting this code would solve a problem
            final HorizontalLayout tableHead = new HorizontalLayout();
            for (final Component component : headers) {
                tableHead.addComponent(component);
            }
            addComponent(tableHead);
        }

        final VerticalLayout tableBody = new VerticalLayout();
        for (final Component component : rows) {
            tableBody.addComponent(component);
        }
        addComponent(tableBody);
    }
}

private final Table table = new Table(new Label("Header 1"), new Label("Header 2"));

private Component createReproducibleExample() {
    final AtomicInteger counter = new AtomicInteger(1);

    return new VerticalLayout(
            new Button("Update table content", event -> {
                table.setEnabled(false);
                UI.getCurrent().push();

                //.... some actions
                try { Thread.sleep(2000); } catch (InterruptedException ignore) {}
                table.updateContent(new Label("Content number: " + counter.incrementAndGet()));
                //.... some actions

                table.setEnabled(true);
                UI.getCurrent().push();
            }),
            table
    );
}