Bug 127289 [Markers] SystemFilter and group selection state not preserved
We are not preserving the selection state of the system filters or which group is selected.
bundles/org.eclipse.ui.ide/src/org/eclipse/ui/views/markers/internal/MarkerView.java
* 
	 * @param monitor
	 */
	public void updateForContentsRefresh(IProgressMonitor monitor) {
		getMarkerAdapter().buildAllMarkers(monitor);
		getProgressService().schedule(updateJob);
	}
	/*
	 * (non-Javadoc)
	 * 
	 * @see org.eclipse.ui.IViewPart#init(org.eclipse.ui.IViewSite,
	 *      org.eclipse.ui.IMemento)
	 */
	public void init(IViewSite site, IMemento memento) throws PartInitException {
		super.init(site, memento);
		IWorkbenchSiteProgressService progressService = getProgressService();
		if (progressService != null) {
			getProgressService().showBusyForFamily(
					ResourcesPlugin.FAMILY_MANUAL_BUILD);
			getProgressService().showBusyForFamily(
					ResourcesPlugin.FAMILY_AUTO_BUILD);
		}
		loadFiltersPreferences();
		ResourcesPlugin.getWorkspace().addResourceChangeListener(
				markerUpdateListener,
				IResourceChangeEvent.POST_CHANGE
						| IResourceChangeEvent.PRE_BUILD
						| IResourceChangeEvent.POST_BUILD);
	}
	/**