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
* @param handle
	 *            the handle of the element
	 * @param includeSelf
	 *            true if includes the element itself, or false only includes
	 *            bindings in the containers
	 * @return the list of all column bindings available.The list order is from
	 *         the top to the given element
	 */
	public static List getAllColumnBindingList( DesignElementHandle handle,
			boolean includeSelf )
	{
		List bindingList = new ArrayList( );
		if ( handle instanceof ReportElementHandle )
		{
			Iterator iterator = getBindingColumnIterator( handle );
			while ( iterator.hasNext( ) )
			{
				bindingList.add( iterator.next( ) );
			}
			if ( handle instanceof ListingHandle )
			{
				SlotHandle groupSlotHandle = ( (ListingHandle) handle )
						.getGroups( );
				for ( Iterator iter = groupSlotHandle.iterator( ); iter
						.hasNext( ); )
				{
					GroupHandle group = (GroupHandle) iter.next( );
					for ( Iterator columnIter = group.columnBindingsIterator( ); columnIter
							.hasNext( ); )
					{