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
* style property. The style handle is not necessary to work with style
	 * properties generically.
	 * <p>
	 * Note a key difference between this method and the
	 * <code>getStyle( )</code> method. This method returns a handle to the
	 * <em>this</em> element. The <code>getStyle( )</code> method returns a
	 * handle to the shared style, if any, that this element references.
	 * 
	 * @return a style handle to work with the style properties of this element.
	 *         Returns <code>null</code> if this element does not have style
	 *         properties.
	 */
	public StyleHandle getPrivateStyle( )
	{
		if ( getDefn( ).hasStyle( ) )
			return new PrivateStyleHandle( module, getElement( ) );
		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( );
	}