Bug 142691 Switch between the window of two design file. The display of the binding list is abnormal.
Description: Switch the window of between two design file. The display of the binding list is abnormal. Step to reproduce: please refer to the screenshot Actual result: The first design files binding data set list will display the second ones.
UI/org.eclipse.birt.report.designer.ui.editors/src/org/eclipse/birt/report/designer/ui/editors/MultiPageReportEditor.java
IPartListener,
		IReportEditor,
		IColleague
{
	public static final String LayoutMasterPage_ID = "org.eclipse.birt.report.designer.ui.editors.masterpage";
	public static final String LayoutEditor_ID = "org.eclipse.birt.report.designer.ui.editors.layout";
	private ReportMultiBookPage fPalettePage;
	private ReportMultiBookPage outlinePage;
	private ReportMultiBookPage dataPage;
	private boolean fIsHandlingActivation;
	private long fModificationStamp = -1;;
	protected IReportProvider reportProvider;
	
	
	
	
	private static class FormEditorSelectionProvider extends
			MultiPageSelectionProvider
	{
		private ISelection globalSelection;
		/**
		 * @param multiPageEditor
		 */
		public FormEditorSelectionProvider( FormEditor formEditor )
		{
			super( formEditor );
		}
		public ISelection getSelection( )
		{