HHH-19856 @LazyGroup is not always respected

Author: marko-bekhta

hibernate-core/src/test/java/org/hibernate/orm/test/mapping/lazytoone/LazyOneToOneWithCastTest.java

@@ -67,6 +67,45 @@ void oneNullOneNotNull(SessionFactoryScope scope) {
 } );
 }
 
+@Test
+void bothNotNull(SessionFactoryScope scope) {
+scope.inTransaction( session -> {
+ContainingEntity containingEntity1 = new ContainingEntity();
+containingEntity1.setId( 1 );
+
+ContainedEntity contained1 = new ContainedEntity();
+contained1.setId( 4 );
+contained1.setContainingAsIndexedEmbeddedWithCast( containingEntity1 );
+containingEntity1.setContainedIndexedEmbeddedWithCast( contained1 );
+
+contained1.setContainingAsIndexedEmbedded( containingEntity1 );
+containingEntity1.setContainedIndexedEmbedded( contained1 );
+
+
+session.persist( contained1 );
+session.persist( containingEntity1 );
+
+} );
+
+scope.inTransaction( session -> {
+ContainedEntity contained = session.find( ContainedEntity.class, 4 );
+
+ContainingEntity containingAsIndexedEmbedded = contained.getContainingAsIndexedEmbedded();
+assertThat( containingAsIndexedEmbedded ).isNotNull();
+assertThat( Hibernate.isPropertyInitialized( contained, "containingAsIndexedEmbedded" ) ).isTrue();
+assertThat( Hibernate.isPropertyInitialized( contained, "containingAsIndexedEmbeddedWithCast" ) ).isFalse();
+
+Object containingAsIndexedEmbeddedWithCast = contained.getContainingAsIndexedEmbeddedWithCast();
+assertThat( Hibernate.isPropertyInitialized( contained, "containingAsIndexedEmbeddedWithCast" ) ).isTrue();
+assertThat( containingAsIndexedEmbeddedWithCast ).isNotNull();
+} );
+
+scope.inTransaction( session -> {
+ContainedEntity contained = session.find( ContainedEntity.class, 4 );
+assertThat( contained.getContainingAsIndexedEmbeddedWithCast() ).isNotNull();
+} );
+}
+
 @AfterEach
 void tearDown(SessionFactoryScope scope) {
 scope.getSessionFactory().getSchemaManager().truncateMappedObjects();