Steve Ebersole commented on an issue
Hibernate ORM / Improvement HHH-1718
Have multiple bag fetches revert to subselect fetching for all but one of the bags
Follow on to HHH-1413. Multiple bag fetches were simply disallowed as the resolution to that particular case in the interest of working around that issue.

The correct longer term solution is to not fetch all the bags at once, ideally reverting to subselect fetching for all but one of the bags.