public boolean updatedOutsideTransaction() {
        // todo: do we need to check version on delete?
        final T updatedValue = transactionUpdatedValue.get();
        return isDeleted ||
                element != null && updatedValue != null && updatedValue.version() != element.version();
    }
Used to understand if elements was changed by other transaction.
tinkergraph-gremlin/src/main/java/org/apache/tinkerpop/gremlin/tinkergraph/structure/TinkerElementContainer.java