Bug 343445 [model] transient data does not notify
The new transient data map <String, Object> does not notify about changes and the owner contains a setTransientData(*) member. It should be more like org.eclipse.e4.ui.model.application.MContribution.getPersistedState() PW
bundles/org.eclipse.e4.ui.model.workbench/src/org/eclipse/e4/ui/model/application/impl/ApplicationElementImpl.java
/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	public String getElementId() {
		return elementId;
	}
	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	public void setElementId(String newElementId) {
		String oldElementId = elementId;
		elementId = newElementId;
		if (eNotificationRequired())
			eNotify(new ENotificationImpl(this, Notification.SET, ApplicationPackageImpl.APPLICATION_ELEMENT__ELEMENT_ID, oldElementId, elementId));
	}
	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	public List<String> getTags() {
		if (tags == null) {
			tags = new EDataTypeUniqueEList<String>(String.class, this, ApplicationPackageImpl.APPLICATION_ELEMENT__TAGS);
		}
		return tags;
	}