Bug 145303 Parameter dialog didn't show the property change in XML Source
Steps to reproduce: 1.New a string parameter with default value "aaa" 2.Switch to XML Source, change its default value to "bbb" 3.Switch to layout, open the parameter dialog in data explorer Expected result: Default value is changed to "bbb" Actual result: Default value is still "aaa"
UI/org.eclipse.birt.report.designer.ui.editors/src/org/eclipse/birt/report/designer/ui/editors/MultiPageReportEditor.java
* @see org.eclipse.ui.forms.editor.FormEditor#init(org.eclipse.ui.IEditorSite,
	 *      org.eclipse.ui.IEditorInput)
	 */
	public void init( IEditorSite site, IEditorInput input )
			throws PartInitException
	{
		super.init( site, input );
		
		
		
		site.setSelectionProvider( new FormEditorSelectionProvider( this ) );
		IReportProvider provider = getProvider( );
		if ( provider != null && provider.getInputPath( input ) != null )
		{
			setPartName( provider.getInputPath( input ).lastSegment( ) );
			firePropertyChange( IWorkbenchPartConstants.PROP_PART_NAME );
		}
		else
		{
			setPartName( input.getName( ) );
			firePropertyChange( IWorkbenchPartConstants.PROP_PART_NAME );
		}
		
		SessionHandleAdapter.getInstance( )
				.getMediator( )
				.addGlobalColleague( this );
	}
	protected IReportProvider getProvider( )
	{
		if ( reportProvider == null )