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/ui/basic/impl/WindowImpl.java
return;
			case BasicPackageImpl.WINDOW__HANDLERS:
				getHandlers().clear();
				return;
			case BasicPackageImpl.WINDOW__BINDING_CONTEXTS:
				getBindingContexts().clear();
				return;
			case BasicPackageImpl.WINDOW__MAIN_MENU:
				setMainMenu((MMenu)null);
				return;
			case BasicPackageImpl.WINDOW__X:
				setX(X_EDEFAULT);
				return;
			case BasicPackageImpl.WINDOW__Y:
				setY(Y_EDEFAULT);
				return;
			case BasicPackageImpl.WINDOW__WIDTH:
				setWidth(WIDTH_EDEFAULT);
				return;
			case BasicPackageImpl.WINDOW__HEIGHT:
				setHeight(HEIGHT_EDEFAULT);
				return;
			case BasicPackageImpl.WINDOW__WINDOWS:
				getWindows().clear();
				return;
			case BasicPackageImpl.WINDOW__SHARED_ELEMENTS:
				getSharedElements().clear();
				return;
		}
		super.eUnset(featureID);