Incorrect results 12c global index

Incorrect results from Oracle 12c.
==================================

This is a simpler case than found in
https://antognini.ch/2016/04/wrong-results-involving-index-full-scan-minmax-in-12-1-0-2/

[oracle@stormking cdb12102 partition]$ sqlplus /nolog @ conn.u.sql

SQL*Plus: Release 12.1.0.2.0 Production on Mon May 30 13:22:18 2016

Copyright (c) 1982, 2014, Oracle.  All rights reserved.

Connected.
SQL> host cat results2.sql
drop table t ;
create table t (
        p number,
        i date
)
partition by list (p) (
        partition p1 values (1),
        partition p2 values (2),
        partition p3 values (3),
        partition p4 values (4),
        partition p5 values (5),
        partition p6 values (6),
        partition p7 values (7)
);

insert into t ( p, i)
select mod(rownum,7)+1,
trunc(sysdate+mod(rownum,7))
from dual
connect by level <= 365;

select p, min(i)
from t
group by p;

select min(i) right from t where p = 3;

create index i on t (i);

select min(i) wrong from t where p = 3;

alter session set "_fix_control" = '16346018:off';
select min(i) from t where p = 3;

SQL> @ results2.sql

Table dropped.


Table created.


365 rows created.


         P MIN(I)
---------- ----------
         1 2016-05-30
         2 2016-05-31
         3 2016-06-01
         4 2016-06-02
         5 2016-06-03
         6 2016-06-04
         7 2016-06-05

7 rows selected.


RIGHT
----------
2016-06-01


Index created.


WRONG
----------
2016-05-30


Session altered.


MIN(I)
----------
2016-06-01