Bug 316279 MCommand's 'parameters' feature is not being persisted correctly
SSIA
bundles/org.eclipse.e4.ui.workbench/src/org/eclipse/e4/ui/internal/workbench/XMLModelReconciler.java
}
			}
		}
		if (object instanceof MWindow) {
			MWindow window = (MWindow) object;
			if (constructDeltas(deltas, references, (EObject) window.getMainMenu(), element, id)) {
				return true;
			}
			if (object instanceof MTrimmedWindow) {
				MTrimmedWindow trimmedWindow = (MTrimmedWindow) object;
				for (MTrimBar trimBar : trimmedWindow.getTrimBars()) {
					if (constructDeltas(deltas, references, (EObject) trimBar, element, id)) {
						return true;
					}
				}
			}
		}
		return false;
	}
	private void constructDeltas(Collection<ModelDelta> deltas, List<Object> references,
			EObject object, Element element) {
		String elementName = element.getNodeName();
		if (elementName.equals(CONTEXT_PROPERTIES_ATTNAME)) {
			constructEntryDelta(deltas, UiPackageImpl.eINSTANCE.getContext_Properties(), object,
					element);
		} else if (elementName.equals(CONTRIBUTION_PERSISTEDSTATE_ATTNAME)) {
			constructEntryDelta(deltas, ApplicationPackageImpl.eINSTANCE
					.getContribution_PersistedState(), object, element);
		} else {
			constructObjectDeltas(deltas, references, object, element);