Bug 213474 [Markers] Unchecking filter does not update
I20071218-0800. 1. Show > TODO ==> filter is applied 2. Show > TODO ==> nothing happens, old filter stays but view menu looks like this: [ ] TODO ---- [x] Show All
bundles/org.eclipse.ui.ide/src/org/eclipse/ui/internal/provisional/views/markers/CachedMarkerBuilder.java
setDefaultCategoryGroup(contentGenerator);
					else
						this.categoryGroup = newGroup;
				}
			}
		}
		createMarkerProcessJob();
		
		ResourcesPlugin.getWorkspace().addResourceChangeListener(
				getUpdateListener(),
				IResourceChangeEvent.POST_CHANGE
						| IResourceChangeEvent.PRE_BUILD
						| IResourceChangeEvent.POST_BUILD);
	}
	/**
	 * Categorise by the default setting for contentGenerator.
	 * 
	 * @param contentGenerator
	 */
	private void setDefaultCategoryGroup(MarkerContentGenerator contentGenerator) {
		String categoryName = contentGenerator.getCategoryName();
		if (categoryName != null) {
			MarkerGroup group = MarkerSupportRegistry.getInstance()
					.getMarkerGroup(categoryName);
			if (group != null)
				categoryGroup = group;
		}
	}
	/**
	 * Initialise the visible fields based pm