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
{
		if ( content == null )
			return;
		ContentCommand cmd = new ContentCommand( getModule( ),
				new ContainerContext( getElement( ), propName ) );
		cmd.add( content.getElement( ) );
	}
	/**
	 * Adds a report item to this property at the given position. The item must
	 * not be newly created and not yet added to the design.
	 * 
	 * @param propName
	 *            name of the property where the content to insert
	 * @param content
	 *            handle to the newly created element
	 * @param newPos
	 *            the position index at which the content to be inserted,
	 *            0-based integer
	 * @throws SemanticException
	 *             if the element is not allowed to insert
	 */
	public void add( String propName, DesignElementHandle content, int newPos )
			throws SemanticException
	{
		if ( content == null )
			return;
		ContentCommand cmd = new ContentCommand( getModule( ),
				new ContainerContext( getElement( ), propName ) );
		cmd.add( content.getElement( ), newPos );
	}