BUG #13808: Upsert not working

The following bug has been logged on the website:

Bug reference: 13808
Logged by: TARUN
Email address: tarunt(at)chisquare(dot)in
PostgreSQL version: 9.5beta1
Operating system: Windows 7 Professional SP1
Description:

drop table daily_deposits;
create table daily_deposits
( id int,
fdd timestamp,
ldd timestamp,
fda double precision,
lda double precision
);

insert into daily_deposits (id, fdd, ldd, fda, lda) values (1,'2015-12-01
08:10:50','2015-12-01 10:10:50', 10, 9);
insert into daily_deposits (id, fdd, ldd, fda, lda) values (1,'2015-12-02
10:10:50','2015-12-02 12:10:50', 10, 9);
insert into daily_deposits (id, fdd, ldd, fda, lda) values (1,'2015-12-04
04:10:50','2015-12-04 08:10:50', 15, 20);

insert into daily_deposits (id, fdd, ldd, fda, lda) values (2,'2015-12-01
08:10:50','2015-12-01 10:10:50', 5, 10);
insert into daily_deposits (id, fdd, ldd, fda, lda) values (2,'2015-12-02
10:10:50','2015-12-02 12:10:50', 6, 12);
insert into daily_deposits (id, fdd, ldd, fda, lda) values (2,'2015-12-03
04:10:50','2015-12-04 08:10:50', 9, 11);

commit;

select * from daily_deposits;

drop table user_first_last;
create table user_first_last
( UserId int,
FirstLoginDate timestamp,
LastLoginDate timestamp,
FirstLoginAmt double precision,
LastLoginAmt double precision
);

INSERT INTO user_first_last AS ufl (UserId,
FirstLoginDate,LastLoginDate,FirstLoginAmt,LastLoginAmt)
select id, fdd, ldd,fda, lda
from daily_deposits
ON CONFLICT (UserId)
DO UPDATE
SET FirstLoginAmt = case when excluded.fdd < ufl.FirstLoginDate then
excluded.fda else ufl.FirstLoginAmt END,
LastLoginAmt = case when excluded.ldd > ufl.LastLoginDate then
excluded.lda else ufl.LastLoginAmt END,
FirstLoginDate = case when excluded.fdd < ufl.FirstLoginDate then
excluded.fdd else ufl.FirstLoginDate END,
LastLoginDate = case when excluded.ldd > ufl.LastLoginDate then
excluded.ldd else ufl.LastLoginDate END;

ERROR: column excluded.fdd does not exist
LINE 6: SET FirstLoginAmt = case when excluded.fdd < ufl.FirstLogi...
^
********** Error **********

ERROR: column excluded.fdd does not exist
SQL state: 42703
Character: 222