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
* @return the <code>URL</code> object if the file with
	 *         <code>fileName</code> is found, or null otherwise.
	 */
	public URL findResource( String fileName, int fileType )
	{
		URL url = getSession( ).getResourceLocator( ).findResource(
				(ModuleHandle) getHandle( this ), fileName, fileType );
		return url;
	}
	/**
	 * Loads library with the given library file name. This file name can be
	 * absolute or relative. If the library doesn't exist or fatal error occurs
	 * when opening library, one invalid library will be added into the library
	 * list of this module.
	 * 
	 * @param libraryFileName
	 *            library file name
	 * @param namespace
	 *            library namespace
	 * @return the loaded library
	 * @throws DesignFileException
	 *             if the library file has fatal error.
	 */
	public Library loadLibrary( String libraryFileName, String namespace )
			throws DesignFileException
	{
		if ( libraries == null )
			libraries = new ArrayList( );
		URL url = findResource( libraryFileName, IResourceLocator.LIBRARY );
		if ( url == null )