Here's the demo: [ https://github.com/romainmoreau/ join hhh - 13721- demo |https://github.com/romainmoreau/hhh-13721-demo|smart-link]
In this demo, there are two entities: {{Root}} and {{Child}}.
One root can have many childs ({{@OneToMany}}).
A child can have many parameters ({{@ElementCollection}}).
First, the demo creates with success a root with one child which contains 3 parameters (a, b and c).
The issue comes when the previously created root is retrieved from the database because the child collection of the root contains {{n}} times the same child entity ({{n}} being the number of parameters in the child, 3 in the demo):
{noformat}
[fr.romainmoreau.joindemo.Child@7c048b30, fr.romainmoreau.joindemo.Child@7c048b30, fr.romainmoreau.joindemo.Child@7c048b30]
{noformat}
The expected behavior would be that the child collection of the root contains just one child entity like when it was inserted:
{noformat}
[fr.romainmoreau.joindemo.Child@7c048b30]
{noformat}
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