Bug 176436 Charts Imported from Libraries do not update when libraries change
During a live presentation of BIRT at EclipseCon, we came across a rather embarassing issue. When charts are included in a library, and imported into a report design from a library, any changes to the library instance of the chart do not reflect in the report itself.
model/org.eclipse.birt.report.model/src/org/eclipse/birt/report/model/elements/ExtendedItem.java
* 
	 * @see org.eclipse.birt.report.model.core.DesignElement#getElementName()
	 */
	public String getElementName( )
	{
		return ReportDesignConstants.EXTENDED_ITEM;
	}
	/*
	 * (non-Javadoc)
	 * 
	 * @see org.eclipse.birt.report.model.core.DesignElement#getHandle(org.eclipse.birt.report.model.elements.ReportDesign)
	 */
	public DesignElementHandle getHandle( Module module )
	{
		return handle( module );
	}
	/**
	 * Returns an API handle for this element.
	 * 
	 * @param module
	 *            the report design
	 * 
	 * @return an API handle for this element.
	 */
	public ExtendedItemHandle handle( Module module )
	{
		if ( handle == null )
		{
			handle = new ExtendedItemHandle( module, this );
		}