@Audited
@Entity
public class TestEntity {
    ...
    @ElementCollection
    private List<Child> children;
    ...
}

generate this scheme:
create table [TestEntity_children_AUD] (
[REV] int not null,
[TestEntity_id] bigint not null,
[REVTYPE] smallint,
...
primary key ([REV], [REVTYPE], [TestEntity_id])
)

This is wrong. this cause a children property must have only one element in it. Or not unique exception will be thrown!