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
* disk, or saved, whichever has occurred most recently.
	 * 
	 * @return true if the in-memory version of the module differs from that on
	 *         disk, false if the two representations are the same
	 */
	public boolean isDirty( )
	{
		return saveState != activityStack.getCurrentTransNo( );
	}
	/**
	 * Called when creating a new module.
	 */
	protected void onCreate( )
	{
		
		
		
		saveState = 0;
	}
	/**
	 * Close this module.
	 */
	public void close( )
	{
		isValid = false;
		if ( !isReadOnly( ) )
		{
			saveState = activityStack.getCurrentTransNo( );
			session.drop( this );
		}