Bug 286678 UI model and propagation of context values: containers with variables
bundles/org.eclipse.e4.ui.model.workbench/src/org/eclipse/e4/ui/model/internal/application/MPartImpl.java
*/
	@Override
	public void eUnset(int featureID) {
		switch (featureID) {
			case ApplicationPackage.MPART__MENU:
				setMenu((MMenu)null);
				return;
			case ApplicationPackage.MPART__TOOL_BAR:
				setToolBar((MToolBar)null);
				return;
			case ApplicationPackage.MPART__POLICY:
				setPolicy(POLICY_EDEFAULT);
				return;
			case ApplicationPackage.MPART__CHILDREN:
				getChildren().clear();
				return;
			case ApplicationPackage.MPART__ACTIVE_CHILD:
				setActiveChild((P)null);
				return;
			case ApplicationPackage.MPART__HANDLERS:
				getHandlers().clear();
				return;
			case ApplicationPackage.MPART__WIDGET:
				setWidget(WIDGET_EDEFAULT);
				return;
			case ApplicationPackage.MPART__PARENT:
				setParent((MPart<?>)null);
				return;
			case ApplicationPackage.MPART__VISIBLE:
				setVisible(VISIBLE_EDEFAULT);