RULE ON INSERT and DEFAULT nextval('...')

Hello pgsql-bugs,

Excuse my English. I'm from Russia.
I understood, that following is implementation behavior,
but this is really not what i'm expecting to see.

--Start test--
create table try1
(
id serial PRIMARY KEY, -- same with DEFAULT nextval('some_sequence')
info varchar(30)
)
without oids;

create table handle_try1
(
id_try1 int PRIMARY KEY,
inf int NOT NULL DEFAULT 0
)
without oids;

create rule try1_insert as
on insert to try1 do insert into handle_try1 (id_try1)
values (new.id);

insert into try1(info) values ('hello');
insert into try1(id,info) values(3,'hell'); -- later one'll see the reason for id=3

select * from try1;
/*
returns
id | info
----+-------
1 | hello
3 | hell
(2 rows)
*/
select * from handle_try1;
/*
returns
id_try1 | inf
---------+-------
2 | 0
3 | 0
(2 rows)
but I really expected
id_try1 | inf
---------+-------
1 | 0
3 | 0
(2 rows)
*/
-- Finish Test

Cause of this I ought to use trigger, what I really do not want to do.
And, i think, same behavior takes the place with other volatile function defaults.

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