Bug 339877 ToolBarManagerRenderer should not dispose of items that weren't created by the rendering engine
1. Window > Open Perspective > CVS Repository Exploring 2. The 'CVS Repositories' view doesn't have the 'Add CVS Repository' tool item. 3. Resizing the view doesn't help. 4. Close the view. 5. Reopen it. 6. Now it's there. Or maybe not, it didn't come back for Paul anyway.
bundles/org.eclipse.e4.ui.workbench.renderers.swt/src/org/eclipse/e4/ui/workbench/renderers/swt/ToolBarManagerRenderer.java
linkModelToContribution(itemModel, ci);
	}
	/**
	 * @param parentManager
	 * @param itemModel
	 */
	private void processHandledItem(ToolBarManager parentManager,
			MHandledToolItem itemModel) {
		IContributionItem ici = getContribution(itemModel);
		if (ici != null) {
			return;
		}
		final IEclipseContext lclContext = getContext(itemModel);
		HandledContributionItem ci = ContextInjectionFactory.make(
				HandledContributionItem.class, lclContext);
		ci.setModel(itemModel);
		ci.setVisible(itemModel.isVisible());
		addToManager(parentManager, itemModel, ci);
		linkModelToContribution(itemModel, ci);
	}
	/**
	 * @param parentManager
	 * @param itemModel
	 * @param ci
	 */
	private void addToManager(ToolBarManager parentManager,
			MToolBarElement model, IContributionItem ci) {
		MElementContainer<MUIElement> parent = model.getParent();
		
		if (parent == null) {