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
}
			}
			if (trimBarsChanged) {
				return null;
			}
			for (EObject rootChild : rootObject.eContents()) {
				if (rootChild instanceof MTrimmedWindow) {
					if (((MTrimmedWindow) rootChild).getTrimBars().contains(reference)) {
						return rootChild;
					}
				}
			}
			return null;
		}
		if (reference instanceof MUIElement) {
			EMap<EObject, EList<FeatureChange>> objectChanges = changeDescription
					.getObjectChanges();
			for (Entry<EObject, EList<FeatureChange>> entry : objectChanges.entrySet()) {
				EObject key = entry.getKey();
				if (key == reference) {
					for (FeatureChange change : entry.getValue()) {
						if (change.getFeatureName().equals(UIELEMENT_PARENT_ATTNAME)) {
							return (EObject) change.getValue();
						}
					}
					break;
				}
			}
			if (reference instanceof MMenu) {
				boolean appendedMenu = false;