IE7 diffrent result when adding a contentpanel to a horizontallayout

Required Information

Version(s) of Ext GWT

3.0.0b

Browser versions and OS(and desktop environment, if applicable)

• Internet Explorer 9 in IE7 mode, Windows 7

Virtual Machine
No

Description
See the screenshots.

Run mode
both

Steps to reproduce the problem
Continue reading

Expected result
Attachment 37179

Actual result
Attachment 37180

Test case

Code:

---

public class main implements EntryPoint {


        public void onModuleLoad() {


                Viewport port = new Viewport();


                ContentPanel panel = new ContentPanel();
                panel.setHeaderVisible(false);
                panel.setCollapsible(true);


                HorizontalLayoutContainer c = new HorizontalLayoutContainer();
                panel.setWidget(c);
                       
                ContentPanel contentPanel = new ContentPanel();
                contentPanel.setHeadingHtml("first panel");
               
                c.add(contentPanel, new HorizontalLayoutData(-1, 1, new Margins(4)));
                c.add(new Label("Test Label 2"), new HorizontalLayoutData(1, 1, new Margins(4, 0, 4, 0)));
                c.add(new Label("Test Label 3"), new HorizontalLayoutData(-1, 1, new Margins(4)));




                port.add(panel, new MarginData(0));
               
                RootPanel.get().add(port);


        }


}

---

Possible fix
«Not provided»