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
* Categorise by the default setting for contentGenerator.
	 * 
	 * @param contentGenerator
	 */
	private void setDefaultCategoryGroup(MarkerContentGenerator contentGenerator) {
		String categoryName = contentGenerator.getCategoryName();
		if (categoryName != null) {
			MarkerGroup group = contentGenerator.getMarkerGroup(categoryName);
			if (group != null)
				categoryGroup = group;
		}
	}
	/**
	 * Set the generator and update the contents.
	 * 
	 * @param generator
	 */
	void setGenerator(MarkerContentGenerator generator) {
		this.generator = generator;
		scheduleMarkerUpdate();
	}
	/**
	 * Set the primary sort field for the receiver.
	 * 
	 * @param field
	 */
	void setPrimarySortField(MarkerField field) {
		getComparator().setPrimarySortField(field);
	}
	/**