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 (object instanceof MPart) {
			MPart part = (MPart) object;
			for (MMenu menu : part.getMenus()) {
				if (constructDeltas(deltas, references, (EObject) menu, element, id)) {
					return true;
				}
			}
			MToolBar toolBar = part.getToolbar();
			if (toolBar != null) {
				if (constructDeltas(deltas, references, (EObject) toolBar, element, id)) {
					return true;
				}
			}
		}
		if (object instanceof MMenuContributions) {
			for (MMenuContribution contribution : ((MMenuContributions) object)
					.getMenuContributions()) {
				if (constructDeltas(deltas, references, (EObject) contribution, element, id)) {
					return true;
				}
			}
		}
		if (object instanceof MToolBarContributions) {
			for (MToolBarContribution contribution : ((MToolBarContributions) object)
					.getToolBarContributions()) {
				if (constructDeltas(deltas, references, (EObject) contribution, element, id)) {
					return true;
				}
			}