Bug 135559 [Markers] Problem view sections collapse after manual build
3.2 M6 The sections in the problem view collapse after a manual build For example: - set autobuild off - expand the errors section in the problem view - click on a problem - fix the problem - build - notice that the "error" section is now collapsed.
bundles/org.eclipse.ui.ide/src/org/eclipse/ui/views/markers/internal/MarkerView.java
* @param newFilters
	 */
	void setFilters(MarkerFilter[] newFilters) {
		markerFilters = newFilters;
	}
	/**
	 * Clear the cache of enabled filters.
	 * 
	 */
	void clearEnabledFilters() {
		enabledFilters = null;
	}
	/**
	 * Refresh the contents of the filter sub menu.
	 */
	private void refreshFilterMenu() {
		if (filtersMenu == null) {
			return;
		}
		filtersMenu.removeAll();
		MarkerFilter[] filters = getAllFilters();
		for (int i = 0; i < filters.length; i++) {
			filtersMenu.add(new FilterEnablementAction(filters[i], this));
		}
	}
	/**
	 * Open a filter dialog on the receiver.
	 */
	protected abstract DialogMarkerFilter createFiltersDialog();
	/**