Bug 296695 [Markers] Problems view does not update on selection change
I20091201-1600 Problems view does not update any more on selection change. I have a 'Warnings on Selection' filter, but I always see the same warnings, even after I opened an editor or selected something in the Package Explorer.
bundles/org.eclipse.ui.ide/src/org/eclipse/ui/internal/views/markers/MarkerContentGenerator.java
* 
	 * @return Collection of MarkerFieldFilterGroup
	 */
	Collection getEnabledFilters() {
		if (enabledFilters == null || enabledFilters == FILTERS_CHANGED) {
			Collection enabled = new HashSet();
			Iterator filtersIterator = getAllFilters().iterator();
			while (filtersIterator.hasNext()) {
				MarkerFieldFilterGroup next = (MarkerFieldFilterGroup) filtersIterator
						.next();
				if (next.isEnabled())
					enabled.add(next);
			}
			enabledFilters = enabled;
		}
		return enabledFilters;
	}
	/**
	 * Rebuild the list of filters
	 */
	protected void rebuildFilters() {
		filters = FILTERS_CHANGED;
		enabledFilters = FILTERS_CHANGED;
		requestMarkerUpdate();
	}
	/**
	 * Disable all of the filters in the receiver.
	 */
	void disableAllFilters() {
		Collection allFilters = getEnabledFilters();