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
*/
	private void loadUserFilter(IMemento child) {
		MarkerFieldFilterGroup newGroup = new MarkerFieldFilterGroup(null, this);
		newGroup.loadSettings(child);
		getAllFilters().add(newGroup);
	}
	/**
	 * Post build has happened. Let it all run.
	 */
	protected void postBuild() {
		preBuildTime = -1;
	}
	/**
	 * We are in a pre build state. Do not update until the post build happens.
	 */
	protected void preBuild() {
		preBuildTime = System.currentTimeMillis();
	}
	/**
	 * Refresh the sort order and categories of the receiver.
	 * 
	 * @param service
	 *            The service to run the operation in.
	 */
	void refreshContents(IWorkbenchSiteProgressService service) {
		try {
			service.busyCursorWhile(new IRunnableWithProgress() {
				/*
				 * (non-Javadoc)
				 *