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Mihalcea Vlad edited a comment on an issue

I attached this test to prove it still replicates on 4.2.6.Final .

The work-around is to never call merge directly but let the flush/commit synchronizing the changes.
Another work-around is to persist the children prior to calling merge.

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Hibernate ORM /

HHH-5855

The method "merge" from the EntityManager causes a duplicated "insert" of a child entity.
Related to HHH-3332

h3.Observed Behavior:
When you have an Entity A with a OneToMany(fetch=LAZY, cascade=ALL or (MERGE and PERSIST)) relationship to another Entity B and attempt to add an new B instance to A hibernate will generate a duplicate insert command upon co...

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