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
for (Object child : ((MElementContainer<?>) object).getChildren()) {
				if (constructDeltas(deltas, references, (EObject) child, element, id)) {
					return true;
				}
			}
		}
		if (object instanceof MBindingTableContainer) {
			for (MBindingTable bindingTable : ((MBindingTableContainer) object).getBindingTables()) {
				if (constructDeltas(deltas, references, (EObject) bindingTable, element, id)) {
					return true;
				}
			}
		}
		if (object instanceof MBindingTable) {
			for (MKeyBinding keyBinding : ((MBindingTable) object).getBindings()) {
				if (constructDeltas(deltas, references, (EObject) keyBinding, element, id)) {
					return true;
				}
			}
		}
		if (object instanceof MHandlerContainer) {
			for (MHandler handler : ((MHandlerContainer) object).getHandlers()) {
				if (constructDeltas(deltas, references, (EObject) handler, element, id)) {
					return true;
				}
			}
		}
		if (object instanceof MApplication) {
			for (MCommand command : ((MApplication) object).getCommands()) {
				if (constructDeltas(deltas, references, (EObject) command, element, id)) {