HHH-16054 fix the issue and add test case#6113

realabertian wants to merge 1 commit intohibernate:5.6hibernate/hibernate-orm:5.6from

realabertian:HHH-16054-jpa-hibernate-duplicate-pkey-error-when-updating-entity-that-is-a-subclass-of-a-base-class-that-uses-id-class-for-composite-primary-keyrealabertian/hibernate-orm:HHH-16054-jpa-hibernate-duplicate-pkey-error-when-updating-entity-that-is-a-subclass-of-a-base-class-that-uses-id-class-for-composite-primary-keyCopy head branch name to clipboard