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.
model/org.eclipse.birt.report.model/src/org/eclipse/birt/report/model/api/DesignElementHandle.java
{
						assert item instanceof ElementRefValue;
						refValue = (ElementRefValue) item;
						if ( refValue.isResolved( ) )
						{
							propHandle.addItem( refValue.getElement( ) );
						}
						else
						{
							propHandle.addItem( refValue
									.getQualifiedReference( ) );
						}
					}
				}
				break;
			default :
				targetHandle.setProperty( propName, value );
		}
	}
	/**
	 * Checks this element with semantic rules.
	 * 
	 * @return the list of errors, each of which is the <code>ErrorDetail</code>
	 *         object.
	 * @see ErrorDetail
	 */
	public List semanticCheck( )
	{
		
		List exceptionList = getElement( ).validate( module );