Florian Kern ( https://hibernate.atlassian.net/secure/ViewProfile.jspa?accountId=5ee102c... ) *created* an issue Hibernate ORM ( https://hibernate.atlassian.net/browse/HHH?atlOrigin=eyJpIjoiYjdlM2VkN2Uy... ) / Bug ( https://hibernate.atlassian.net/browse/HHH-14102?atlOrigin=eyJpIjoiYjdlM2... ) HHH-14102 ( https://hibernate.atlassian.net/browse/HHH-14102?atlOrigin=eyJpIjoiYjdlM2... ) orphanRemoval behaviour differ from lazy to eager loading ( https://hibernate.atlassian.net/browse/HHH-14102?atlOrigin=eyJpIjoiYjdlM2... ) Issue Type: Bug Affects Versions: 5.4.12, 5.4.17 Assignee: Unassigned Components: hibernate-core, hibernate-entitymanager Created: 09/Jul/2020 04:11 AM Priority: Critical Reporter: Florian Kern ( https://hibernate.atlassian.net/secure/ViewProfile.jspa?accountId=5ee102c... ) In a oneToMany relation you have different behaviours if you removing a children from the collection. If you remove a children from a fetched collection, the children wouldnt be removed from the database. If your collection is lazy fetched, the children would be deleted. See attached Testcase for example. Execute via mvn test ( https://hibernate.atlassian.net/browse/HHH-14102#add-comment?atlOrigin=ey... ) Add Comment ( https://hibernate.atlassian.net/browse/HHH-14102#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:bf400b0 )