Christian Beikov ( https://hibernate.atlassian.net/secure/ViewProfile.jspa?accountId=557058%... ) *commented* on HHH-13174 ( https://hibernate.atlassian.net/browse/HHH-13174?atlOrigin=eyJpIjoiZjBkMz... ) Re: L1 Cache object updating issue ( https://hibernate.atlassian.net/browse/HHH-13174?atlOrigin=eyJpIjoiZjBkMz... ) This is expected and is actually the reason why the {{ON}}clause is disallowed for fetch joins. Changing the elements of a collection through a filter condition changes the persistent state that Hibernate observes, so this kind of query might even lead to elements being deleted. You should never use a filter condition on a join alias of a fetch joined collection or singular attribute reached through a fetch join of a collection. You should use a custom projection without join fetching instead. SELECT u, c from User u JOIN u.childrenList s WHERE s.id = 1 ( https://hibernate.atlassian.net/browse/HHH-13174#add-comment?atlOrigin=ey... ) Add Comment ( https://hibernate.atlassian.net/browse/HHH-13174#add-comment?atlOrigin=ey... ) Get Jira notifications on your phone! Download the Jira Cloud app for Android ( https://play.google.com/store/apps/details?id=com.atlassian.android.jira.... ) or iOS ( https://itunes.apple.com/app/apple-store/id1006972087?pt=696495&ct=Em... ) This message was sent by Atlassian Jira (v1001.0.0-SNAPSHOT#100133- sha1:ead1094 )