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
*/
	boolean isBuilding() {
		return building;
	}
	/**
	 * Return whether or not we are showing a hierarchy,.
	 * 
	 * @return <code>true</code> if a hierarchy is being shown.
	 */
	boolean isShowingHierarchy() {
		return categoryGroup != null;
	}
	/**
	 * Load the settings from the memento.
	 * 
	 * @param memento
	 */
	private void loadFilterSettings(IMemento memento) {
		if (memento == null)
			return;
		Boolean andValue = memento.getBoolean(TAG_AND);
		if (andValue != null)
			setAndFilters(andValue.booleanValue());
		IMemento children[] = memento.getChildren(TAG_GROUP_ENTRY);
		for (int i = 0; i < children.length; i++) {
			IMemento child = children[i];
			String id = child.getString(IMemento.TAG_ID);
			if (id == null)
				continue;
			if (!loadGroupWithID(child, id))