ResultSet closed while scrolling results

We have some code pattern that used to work in Hibernate 5.4 but fails on Hibernate 6.4.4.
The code iterates a ScrollableResults in the usual way by calling next/get in a while loop. Now the second call to next fails because the ResultSet has been closed in the meantime, even if the loop itself does nothing.

We notice it happening mainly if the entity has some entity linked to it, like in a @OneToMany association.

Example entities:

Example query:

It looks like I now need to wrap the loop within beginTransaction/commit to make it work.

It seems this behavior changed somewhere along Hibernate 5 history. It worked fine on 5.4.x, stopped working later in 5.5/5.6 series, and it is not working now in 6.4.4.

I have put reproducers at this repo