Bug 146976 Save state of the report not correct.
Reproduce: 1) New a library "lib1", add a label "label1" 2) Publish "lib1" 3) New a report "report1", use "lib1" 4) Drag "lib1.label1" into "report1" 5) Go back to "lib1", drop "label1", save and publish again. 6) Go to "report1", refresh the libaray explorer and design. 7) Save "report1" 8) Now, we go back to "lib1" 9) Undo the previous "delete command", "label1" is added back. 10) Save "lib1", and re-publish. 11) Go to "report1", refresh the libaray explorer and design. 12) Save "report1" At this stage, "report1" is saved, but the dirty indicator(*) still displayed in the left side of the report name. I am testing on build N20060613
model/org.eclipse.birt.report.model/src/org/eclipse/birt/report/model/core/Module.java
* request is silently ignored.
	 * 
	 * @param listener
	 *            the attribute listener to remove
	 * @return <code>true</code> if <code>listener</code> is successfully
	 *         removed. Otherwise <code>false</code>.
	 * 
	 */
	public boolean removeAttributeListener( IAttributeListener listener )
	{
		if ( attributeListeners == null )
			return false;
		return attributeListeners.remove( listener );
	}
	/**
	 * Broadcasts the file name event to the file name listeners.
	 * 
	 * @param event
	 *            the file name event
	 */
	public void broadcastFileNameEvent( AttributeEvent event )
	{
		if ( attributeListeners != null )
		{
			Iterator iter = attributeListeners.iterator( );
			while ( iter.hasNext( ) )
			{
				IAttributeListener listener = (IAttributeListener) iter.next( );
				listener.fileNameChanged( (ModuleHandle) getHandle( this ),
						event );