Update domain model with generated non-id fields

Versions:

• Spring boot 2.3.1.RELEASE
• spring-data-r2dbc 1.1.1.RELEASE
• r2dbc-postgresql 0.8.3.RELEASE

Current Behavior
check_create_at_ret table has a column created_at with a default value.

create table check_create_at_ret
(
    id         bigint generated by default as identity
        constraint check_create_at_ret_pkey primary key,
    created_at timestamp default now() not null,
    status     varchar(64)
);

But after saving the new entity, the value that is set at the database level is not returned.

Example:

@Data
@NoArgsConstructor
@AllArgsConstructor
@Accessors(chain = true)
public class CheckCreateAtRet {

    @Id
    private Long id;

    private String status;

    private LocalDateTime createdAt;
    
}

public interface CheckCreateAtRetRepo extends ReactiveCrudRepository<CheckCreateAtRet, Long> {
}

// ...
private final CheckCreateAtRetRepo checkCreateAtRetRepo;

public void save() {
        checkCreateAtRetRepo.save(new CheckCreateAtRet().setStatus("Status123"))
                .doOnNext(entity -> System.out.println(entity.getCreatedAt()))
                .subscribe();
}
// ...

Null will be printed

Start with the CheckCreateAtRetRepo.save call and the PostgreSQL check_create_at_ret table definition, focusing on how the database-generated created_at value is handled. Reproduce the example with CheckCreateAtRet and verify that the entity returned after save contains the generated createdAt value.