Bug 320171 [Model] Use real Java-References in the Binding-Model-Elements
Currently they BindingTable is referencing a BindingContext using an ID. To me it looks like BindingTable is a child of BindingContext and then doesn't need the ID-Reference any more
bundles/org.eclipse.e4.ui.model.workbench/src/org/eclipse/e4/ui/model/application/impl/ApplicationImpl.java
return;
			case ApplicationPackageImpl.APPLICATION__ROOT_CONTEXT:
				getRootContext().clear();
				return;
			case ApplicationPackageImpl.APPLICATION__DESCRIPTORS:
				getDescriptors().clear();
				return;
			case ApplicationPackageImpl.APPLICATION__BINDING_CONTEXTS:
				getBindingContexts().clear();
				return;
			case ApplicationPackageImpl.APPLICATION__MENU_CONTRIBUTIONS:
				getMenuContributions().clear();
				return;
			case ApplicationPackageImpl.APPLICATION__TOOL_BAR_CONTRIBUTIONS:
				getToolBarContributions().clear();
				return;
			case ApplicationPackageImpl.APPLICATION__TRIM_CONTRIBUTIONS:
				getTrimContributions().clear();
				return;
			case ApplicationPackageImpl.APPLICATION__COMMANDS:
				getCommands().clear();
				return;
			case ApplicationPackageImpl.APPLICATION__ADDONS:
				getAddons().clear();
				return;
			case ApplicationPackageImpl.APPLICATION__CATEGORIES:
				getCategories().clear();
				return;
		}
		super.eUnset(featureID);