Bug 226305 [Markers] Tasks view not clearing high and low priority items
When the priority of a task changes from high to normal the icon is not updated. This is also an issue for sorting. STEPS 1) Open a task view with some FIXME tasks 2) Create a new normal task - it will show up with a ! icon and one FIXME will have no icon.
bundles/org.eclipse.ui.ide/src/org/eclipse/ui/internal/views/markers/MarkerPriorityField.java
public MarkerPriorityField() {
		super();
	}
	/*
	 * (non-Javadoc)
	 * 
	 * @see org.eclipse.ui.internal.provisional.views.markers.api.MarkerField#compare(org.eclipse.ui.internal.provisional.views.markers.api.MarkerItem,
	 *      org.eclipse.ui.internal.provisional.views.markers.api.MarkerItem)
	 */
	public int compare(MarkerItem item1, MarkerItem item2) {
		return item2.getAttributeValue(IMarker.PRIORITY,
				IMarker.PRIORITY_NORMAL)
				- item1.getAttributeValue(IMarker.PRIORITY,
						IMarker.PRIORITY_NORMAL);
	}
	/*
	 * (non-Javadoc)
	 * 
	 * @see org.eclipse.ui.internal.provisional.views.markers.MarkerField#getColumnHeaderText()
	 */
	public String getColumnHeaderText() {
		return MarkerSupportInternalUtilities.EMPTY_STRING;
	}
	/*
	 * (non-Javadoc)
	 * 
	 * @see org.eclipse.ui.internal.provisional.views.markers.api.MarkerField#getColumnTooltipText()
	 */
	public String getColumnTooltipText() {
		return MarkerMessages.priority_description;