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
return (ExtendedItemHandle) handle;
	}
	/*
	 * (non-Javadoc)
	 * 
	 * @see org.eclipse.birt.report.model.core.DesignElement#hasLocalPropertyValues()
	 */
	public boolean hasLocalPropertyValues( )
	{
		if ( super.hasLocalPropertyValues( ) )
			return true;
		if ( provider != null )
			return provider.hasLocalPropertyValues( );
		return false;
	}
	/**
	 * Gets a property value given its definition. This version checks not only
	 * this one object, but also the extended element this item has. That is, it
	 * gets the "local" property value. The property name must also be valid for
	 * this object.
	 * 
	 * @see org.eclipse.birt.report.model.core.DesignElement#getLocalProperty(Module,
	 *      org.eclipse.birt.report.model.metadata.ElementPropertyDefn)
	 */
	public Object getLocalProperty( Module module, ElementPropertyDefn prop )
	{
		assert prop != null;
		if ( !prop.isExtended( ) )
			return super.getLocalProperty( module, prop );
		if ( provider != null )