Extra Space in RichEditabletext with html text

How do you feed RichEditableText with html?

I found that pure TLF works well as follows with SDK 4.5. RichEditableText is a kind of Sprite.

package
{
    import flash.display.Sprite;
   
    import flashx.textLayout.container.ContainerController;
    import flashx.textLayout.conversion.*;
    import flashx.textLayout.edit.EditManager;
    import flashx.textLayout.edit.IEditManager;
    import flashx.textLayout.elements.TextFlow;
   
    public class HTMLImporter extends Sprite
    {
        public function HTMLImporter()
        {
            var html:String = "<br/>"+
                "<font size=\"13\" color=\"#000066\">"+
                   "<b>"+
                      "<a name=\"b\">B</a>"+
                   "</b>"+
                "</font>"+
                "<br/>";
            var textFlow:TextFlow = TextConverter.importToFlow(html, TextConverter.TEXT_FIELD_HTML_FORMAT);
            textFlow.interactionManager = new EditManager() as IEditManager;
            var cc:ContainerController = new ContainerController(this, 200,1000);
            textFlow.flowComposer.addController(cc);
            textFlow.flowComposer.updateAllControllers();
        }
    }
}