Bug 192171 Layout still display css style from library after removing library.[01]
Description: Layout still display css style from library after removing library. Build number:2.2.0.v20070612 Steps to reproduce: 1. Add a css file in Library Explorer 2. New a library file. 3. Use css file in library default theme. 4. New a report and use the library. 5. Insert a label and apply the style from library. 6. Remove the library in report Outline. Expected result: Style effect disappears from label in Layout. Actual result: Label in Layout still displays the style effect. Error log:N/A
model/org.eclipse.birt.report.model/src/org/eclipse/birt/report/model/core/ReferenceableElementAdapter.java
implements
			IReferencableElement,
			Cloneable
{
	/**
	 * The list of cached clients.
	 */
	protected ArrayList clients = new ArrayList( );
	/**
	 * The design element.
	 */
	private DesignElement element;
	/**
	 * The constructor.
	 * 
	 * @param element
	 *            the element
	 */
	public ReferenceableElementAdapter( ReferenceableElement element )
	{
		this.element = element;
	}
	/**
	 * The constructor.
	 *