lastValue = null;
}
protected FieldViewData ensureViewData(Context context, XElement parent) {
Object key = context.getKey();
FieldViewData viewData = getViewData(key);
if (viewData == null) {
viewData = new FieldViewData(((InputElement) getInputElement(parent).cast()).getValue());
setViewData(key, viewData);
}
return viewData;
}