Bug 138359 [ProblemsView] Filters not restored on import
I have 2 problems view filters in my saved preferences. 1 is the default filter, changed to only work on the select item. 2 is a new filter, where the sev is Error. When created, it defaulted to "On working set" where the working set default was the Workspace Working set. I just created a new workspace in N20060425-0010, imported my preferences, and grabbed platform-ui from HEAD. None of the errors (for win32 and carbon) showed up, and when I checked my #2 filter, the working set has been changed to non-selected. PW
bundles/org.eclipse.ui.ide/src/org/eclipse/ui/internal/views/markers/CachedMarkerBuilder.java
IMemento memento) {
		this.generator = contentGenerator;
		this.viewId = id;
		initialiseVisibleFields();
		this.memento = memento;
		if (memento == null)
			setDefaultCategoryGroup(contentGenerator);
		else {
			
			String categoryGroupID = memento.getString(TAG_CATEGORY_GROUP);
			if (categoryGroupID == null)
				setDefaultCategoryGroup(contentGenerator);
			else {
				if (categoryGroupID.equals(VALUE_NONE))
					this.categoryGroup = null;
				else {
					MarkerGroup newGroup = contentGenerator
							.getMarkerGroup(categoryGroupID);
					if (newGroup == null)
						setDefaultCategoryGroup(contentGenerator);
					else
						this.categoryGroup = newGroup;
				}
			}
		}
		createMarkerProcessJob();
		
		ResourcesPlugin.getWorkspace().addResourceChangeListener(
				getUpdateListener(),
				IResourceChangeEvent.POST_CHANGE