Bug 339347 [Markers] Can't toggle item limits in Problems view any more without losing limit
I20110308-2000 I can't toggle item limits in Problems view any more without losing limits. After I've disabled the limits, the next time I enable limits, the value is "1". The stored value should not be changed.
bundles/org.eclipse.ui.ide/src/org/eclipse/ui/internal/views/markers/ExtendedMarkersView.java
*/
	void openFiltersDialog() {
		FiltersConfigurationDialog dialog = new FiltersConfigurationDialog(
				getSite().getWorkbenchWindow().getShell(), generator);
		if (dialog.open() == Window.OK) {
			generator.updateFilters(dialog.getFilters(), dialog.andFilters());
		}
	}
	/**
	 * Open the selected markers
	 */
	void openSelectedMarkers() {
		IMarker[] markers = getSelectedMarkers();
		for (int i = 0; i < markers.length; i++) {
			IMarker marker = markers[i];
			IWorkbenchPage page = getSite().getPage();
			openMarkerInEditor(marker, page);
		}
	}
	/**
	 * Restore the expanded categories.
	 * 
	 */
	void reexpandCategories() {
		if (!getCategoriesToExpand().isEmpty() && builder.isShowingHierarchy()) {
			MarkerItem[] items =getActiveViewerInputClone().getElements();
			IContentProvider provider = viewer.getContentProvider();
			for (int i = 0; i < items.length; i++) {
				String name = ((MarkerCategory) items[i]).getName();
				if (getCategoriesToExpand().contains(name)) {