Aleksander Mierzwa ( https://hibernate.atlassian.net/secure/ViewProfile.jspa?accountId=557058%... ) *commented* on HHH-15402 ( https://hibernate.atlassian.net/browse/HHH-15402?atlOrigin=eyJpIjoiOGJlYT... ) Re: Reading data inside transaction throws "identifier of an instance was changed" when @IdClass compound key mapping is used ( https://hibernate.atlassian.net/browse/HHH-15402?atlOrigin=eyJpIjoiOGJlYT... ) As of 03.2023, the issue still exists in 5.6.15 ( https://hibernate.atlassian.net/browse/HHH-15402#add-comment?atlOrigin=ey... ) Add Comment ( https://hibernate.atlassian.net/browse/HHH-15402#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#100217- sha1:65be9f2 )