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/api/DesignElementHandle.java
* @param value
	 *            the overridden value
	 * 
	 * @throws SemanticException
	 *             if the maskValue is not one of the above.
	 */
	public void setPropertyBinding( String propName, String value )
			throws SemanticException
	{
		
		ElementPropertyDefn defn = (ElementPropertyDefn) getPropertyDefn( propName );
		if ( defn == null )
			throw new SemanticError( getElement( ), new String[]{
				propName
			}, SemanticError.DESIGN_EXCEPTION_INVALID_PROPERTY_NAME );
		if ( IModuleModel.PROPERTY_BINDINGS_PROP.equals( defn.getName( ) ) )
			return;
		
		Module root = getElement( ).getRoot( );
		if ( root == null )
			throw new SemanticError( getElement( ),
					SemanticError.DESIGN_EXCEPTION_PROPERTY_BINDING_FORBIDDEN );
		assert root.getElementByID( getID( ) ) == getElement( );
		ArrayList bindingList = (ArrayList) root.getLocalProperty( root,
				IModuleModel.PROPERTY_BINDINGS_PROP );
		PropertyBinding binding = root.findPropertyBinding( getElement( ),
				propName );
		
		if ( binding == null && value == null )
			return;