Hibernate Envers: Auditing an object, calling merge on it, gives an audit record EVERY time even with no change?

问题

As in the title. I would expect Envers to only insert an audit record if the data has actually changed (have tried to help Envers along by providing equals and hashCode methods) - does this not come as standard?

Many thanks

来源：https://stackoverflow.com/questions/26892191/hibernate-envers-auditing-an-object-calling-merge-on-it-gives-an-audit-record