[hibernate-issues] [Hibernate-JIRA] Commented: (HHH-2910) entity version increased after merging Map

entity version increased after merging Map ------------------------------------------ Key: HHH-2910 URL: http://opensource.atlassian.com/projects/hibernate/browse/HHH-2910 Project: Hibernate3 Issue Type: Bug Components: core Affects Versions: 3.2.5 Environment: core 3.2.5, entity manager 3.3.1 Reporter: kyrieeleison EntityB extends abstract EntityA by primary key join EntityC has a composite key, which are "mapColumn" and "joinColumn" EntityB, EntityC has a one-to-many, manty-to-one bid relationship, For EntityA: <inheritance strategy="JOINED"/> <id name="joinColumn"/> For EntityB: <!-- primary key join EntityA --> <primary-key-join-column name="joinColumn" referenced-column-name="joinColumn" /> <!-- one to many Map --> <one-to-many fetch="EAGER" name="entityCes" target-entity="EntityC" mapped-by="entityB"> <map-key name="mapColumn"/> <join-column name="joinColumn"/> <cascade> <cascade-all/> </cascade> </one-to-many> For EntityC: <!-- composite id --> <id name="joinColumn"/> <id name="mapColumn"/> <!-- many to one EntityB --> <many-to-one name="entityB" target-entity="EntityB"> <join-column name="joinColumn" insertable="false" updatable="false"/> </many-to-one> Merge EntityB again and again without changing any properties, its version number get increased If change the one-to-many to Set , not Map, its version number stay unchanged as expected Is that a desired behavior?