I have confirmed this issue with version 5.2.

The way it was reproduced was using deprecated SQLQuery like

SQLQuery sqlQuery = session.createQuery(SOME_STRING);
while (true) {
sqlQuery.addEntity(SomeEntityClass.class);
sqlQuery.setParameterList("someParameter", someParameter);
sqlQuery.list();

if (something)

}

So when we reuse an object of type SQLQuery we might get this error. Now, this might not be a bug if this kind of use is forbidden.