cannot hide a child of a SectionStack

[jaysmith2020]

Hidden content nested in a SectionStack is visible. I have a section that contains several ListGrids that I only want to display if they contain data. If I add them to a Layout, it works as expected, but if I put them in a Section, they are always visible when the section is expanded even if I setVisible(false).

SmartGWT 4.1p SmartClient Version: v9.1p_2014-03-03/LGPL Development Only (built 2014-03-03)

Tested in Firefox 29.0 and Chromium 34.0.1847.116 Ubuntu 12.04 (260972)

Here's a simplified example:

	private class TestLayout extends VLayout
	{
		TestLayout()
		{
			setHeight(200);
			setBorder("red solid 2px;");

			final SectionStack sectionStack = new SectionStack();
			final SectionStackSection section = new SectionStackSection("test");
			final Label nestedLabel = new Label("nested hidden label");
			nestedLabel.setVisible(false);
			section.setItems(nestedLabel);
			sectionStack.addSection(section);

			setMembers(sectionStack);
		}
	}