Bug 146159 [Regression]Changing font operation doesn't work other than the first time
Description: The first time changing operation can work well. However, Change it again, it won't work. Steps: 1.Insert lable/text to layout or master page 2.Change the font from serif to cursive, it works well 3.Change the font again Result: The action doesn't work Additional infor: build number:200606080632
UI/org.eclipse.birt.report.designer.core/src/org/eclipse/birt/report/designer/util/DEUtil.java
{
	/**
	 * Property name for element labelContent.
	 */
	public static final String ELEMENT_LABELCONTENT_PROPERTY = "labelContent"; 
	private static HashMap propertiesMap = new HashMap( );
	private static ArrayList notSupportList = new ArrayList( );
	static
	{
		propertiesMap
				.put( LabelHandle.TEXT_PROP, ELEMENT_LABELCONTENT_PROPERTY );
		propertiesMap.put( TextItemHandle.CONTENT_PROP,
				ELEMENT_LABELCONTENT_PROPERTY );
		
		notSupportList.add( DesignEngine.getMetaDataDictionary( ).getElement(
				ReportDesignConstants.LINE_ITEM ) );
		notSupportList.add( DesignEngine.getMetaDataDictionary( ).getElement(
				ReportDesignConstants.TEMPLATE_REPORT_ITEM ) );
		notSupportList.add( DesignEngine.getMetaDataDictionary( ).getElement(
				ReportDesignConstants.FREE_FORM_ITEM ) );
		notSupportList.add( DesignEngine.getMetaDataDictionary( ).getElement(
				ReportDesignConstants.GRAPHIC_MASTER_PAGE_ELEMENT ) );
	}
	/**
	 * Gets the support list of the given parent element and the slotID.
	 *