Bug 142928 Item from library is changed to a report design item after revert to report item
Details: Item from library is changed to a report design item after revert to report item. Setp: 1.New a template. 2.Use a libary contain a label. 3.Drop the label from library explorer into layout. 4.Change the label to template item. 5.Revert the template item to report item. Actual result: The label is become a report item, but a item from library. Please see the attach image. Exception result: The lable is revert a item from library.
UI/org.eclipse.birt.report.designer.ui/src/org/eclipse/birt/report/designer/internal/ui/views/DefaultNodeProvider.java
{
			return false;
		}
		if ( position == InsertAction.CURRENT )
		{
			slotHandle.add( elementHandle );
		}
		else
		{
			int pos = DNDUtil.calculateNextPosition( model,
					DNDUtil.handleValidateTargetCanContain( model,
							elementHandle,
							true ) );
			if ( pos > 0 && position == InsertAction.ABOVE )
			{
				pos--;
			}
			if ( pos == -1 )
			{
				slotHandle.add( elementHandle );
			}
			else
			{
				slotHandle.add( elementHandle, pos );
			}
		}
		if ( elementHandle instanceof ExtendedItemHandle )
		{
			if ( !ElementProcessorFactory.createProcessor( elementHandle )
					.editElement( elementHandle ) )