Bug 33085 [Preferences] Last page not remembered the second time
RC1 build - Window / Preferences - select the Appearance page - OK - Window / Preferences - Appearance page is still selected - OK - Window / Preferences - Workbench is selected It should always remember the last page, even if the page isn't changed.
bundles/org.eclipse.jface/src/org/eclipse/jface/preference/PreferenceDialog.java
Display display = parent.getDisplay();
		Color background = JFaceColors.getBannerBackground(display);
		final Color foreground = JFaceColors.getBannerForeground(display);
		GridData layoutData = new GridData(GridData.FILL_BOTH);
		titleArea.setLayout(layout);
		titleArea.setLayoutData(layoutData);
		titleArea.setBackground(background);
		final Color borderColor =
			new Color(titleArea.getDisplay(), ViewForm.borderOutsideRGB);
		titleArea.addPaintListener(new PaintListener() {
			public void paintControl(PaintEvent e) {
				e.gc.setForeground(borderColor);
				Rectangle bounds = titleArea.getClientArea();
				bounds.height = bounds.height - 2;
				bounds.width = bounds.width - 1;
				e.gc.drawRectangle(bounds);
			}
		});
		
		titleArea.addDisposeListener(new DisposeListener() {
			public void widgetDisposed(DisposeEvent e) {
				if (titleAreaColor != null)
					titleAreaColor.dispose();
				if (errorMsgAreaBackground != null)
					errorMsgAreaBackground.dispose();
				borderColor.dispose();
			}
		});
		
		messageLabel = new CLabel(titleArea, SWT.LEFT);