Bug 317954 Version deltas file so that incompatible changes will be ignored
The deltas file needs to be versioned so that incompatible changes will be discarded allowing the workbench to be constructed as if there were no deltas in existence.
bundles/org.eclipse.e4.ui.workbench/src/org/eclipse/e4/ui/internal/workbench/XMLModelReconciler.java
}
								menuChanged = true;
								break;
							}
						}
					}
				}
				if (menuChanged && menuSet) {
					return null;
				} else if (appendedMenu && !menuSet && !menuChanged) {
					return null;
				}
				EObject container = reference.eContainer();
				if (!(container instanceof MMenu)) {
					return container;
				}
			}
			if (reference instanceof MToolBar) {
				for (Entry<EObject, EList<FeatureChange>> entry : objectChanges.entrySet()) {
					EObject key = entry.getKey();
					if (key instanceof MPart) {
						for (FeatureChange change : entry.getValue()) {
							if (change.getFeatureName().equals(PART_TOOLBAR_ATTNAME)) {
								if (change.getValue() == reference) {
									return key;
								}
							}
						}
					}
				}