NplusOneTest.joinFetch - is different count of results expected?

[ValentinaBaranova]

hibernate-performance/src/test/java/com/jeeconf/hibernate/performancetuning/nplusone/NplusOneTest.java

Line 30 in 29303d2

List<Client> clients = session.createQuery("select c from NPlusOneClient c join fetch c.accounts where c.age >= :age")

Is it expected that we get here 13 clients because of join, while in database we have only 10?

[dgcd]

Really, result list has size of 13 with duplicated clients, though there are 10 in DB. Quite unexpectable.
But there is good explanation of this behaviour:
https://stackoverflow.com/questions/18753245/one-to-many-relationship-gets-duplicate-objects-without-using-distinct-why