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
{
			if ( handle instanceof ModuleHandle )
			{
				
				String size = (String) DesignerConstants.fontMap
						.get( DesignChoiceConstants.FONT_SIZE_MEDIUM );
				return Integer.parseInt( size ) + 1;
			}
			if ( handle instanceof GroupHandle )
			{
				handle = handle.getContainer( );
			}
		}
		Object fontSizeValue = getModelFontSize( handle );
		if ( fontSizeValue instanceof DimensionValue )
		{
			int size = getFontSizeIntValue( handle.getContainer( ) );
			return (int) CSSUtil.convertToPoint( fontSizeValue, size ) + 1;
		}
		else if ( fontSizeValue instanceof String )
		{
			String fontSize = (String) fontSizeValue;
			if ( fontSize.equals( DesignChoiceConstants.FONT_SIZE_LARGER ) )
			{
				return getLargerFontSizeIntValue( handle.getContainer( ) );
			}
			else if ( fontSize.equals( DesignChoiceConstants.FONT_SIZE_SMALLER ) )
			{
				return getSmallerFontSizeIntValue( handle.getContainer( ) );
			}