Bug 325722 'Close'-related context menu actions should show up for all stacks and apply to all items
See bug title ;)
bundles/org.eclipse.e4.ui.workbench.renderers.swt/src/org/eclipse/e4/ui/workbench/renderers/swt/StackRenderer.java
updateTab(cti, part, attName, newValue);
					}
					return;
				}
				
				
				List<MPlaceholder> refs = ElementReferenceRenderer
						.getRenderedPlaceholders(element);
				for (MPlaceholder ref : refs) {
					MElementContainer<MUIElement> refParent = ref.getParent();
					if (refParent.getRenderer() instanceof StackRenderer) {
						CTabItem cti = findItemForPart(ref, refParent);
						if (cti != null) {
							updateTab(cti, part, attName, newValue);
						}
					}
				}
			}
		};
		eventBroker.subscribe(UIEvents.buildTopic(UIEvents.UILabel.TOPIC),
				itemUpdater);
		dirtyUpdater = new EventHandler() {
			public void handleEvent(Event event) {
				Object objElement = event
						.getProperty(UIEvents.EventTags.ELEMENT);
				
				if (!(objElement instanceof MPart)) {
					return;
				}