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
return null;
	}
	/**
	 * Returns the name of this element. Returns <code>null</code> if the
	 * element does not have a name. Many elements do not require a name. The
	 * name does not inherit. If this element does not have a name, it will not
	 * inherit the name of its parent element.
	 * 
	 * @return the element name, or null if the name is not set
	 */
	public String getName( )
	{
		return getElement( ).getName( );
	}
	/**
	 * Gets the name of this element. The returned element name will be the same
	 * as <CODE>getName()</CODE>, plus the namespace of the module that the
	 * elment is contained, if any. If the element is existed in the current
	 * module,this method and <CODE>getName()</CODE> will return identical
	 * results.
	 * 
	 * @return the qualified name of thie element.
	 */
	public String getQualifiedName( )
	{
		String name = getName( );
		if ( name == null )
			return null;
		Module rootElement = getElement( ).getRoot( );
		if ( rootElement instanceof Library )