interval partitioned IOT not supported in 12.1.0.2

> DROP TABLE iotrange
TABLE IOTRANGE dropped.
> CREATE TABLE iotrange
(
d DATE,
n NUMBER,
CONSTRAINT iotrange_pk PRIMARY KEY ( d,n )
)
ORGANIZATION INDEX
PARTITION BY RANGE ( d )
(
PARTITION p2014 VALUES less than (TO_DATE('2015-01-01','yyyy-mm-dd'))
)
TABLE IOTRANGE created.
> DROP TABLE heapinterval
TABLE HEAPINTERVAL dropped.
> CREATE TABLE heapinterval
(
d DATE,
n NUMBER,
CONSTRAINT heapinterval_pk PRIMARY KEY ( d,n )
)
PARTITION BY RANGE ( d ) INTERVAL (INTERVAL '1' DAY)
(
PARTITION p2014 VALUES less than (TO_DATE('2015-01-01','yyyy-mm-dd'))
)
TABLE HEAPINTERVAL created.
> CREATE TABLE iotinterval
(
d DATE,
n NUMBER,
CONSTRAINT iotinterval_pk PRIMARY KEY ( d,n )
)
ORGANIZATION INDEX
PARTITION BY RANGE ( d ) INTERVAL (INTERVAL '1' DAY)
(
PARTITION p2014 VALUES less than (TO_DATE('2015-01-01','yyyy-mm-dd'))
)

Error starting AT line 29 IN command:
CREATE TABLE iotinterval
(
d DATE,
n NUMBER,
CONSTRAINT iotinterval_pk PRIMARY KEY ( d,n )
)
ORGANIZATION INDEX
PARTITION BY RANGE ( d ) INTERVAL (INTERVAL '1' DAY)
(
PARTITION p2014 VALUES less than (TO_DATE('2015-01-01','yyyy-mm-dd'))
)
Error AT Command Line:37 COLUMN:1
Error report:
SQL Error: ORA-25198: only RANGE, list, AND hash partitioning are supported FOR index-organized TABLE
25198. 00000 -  "only range, list, and hash partitioning are supported for index-organized table"
*Cause:    SYSTEM, OR Composite partitioning schemes are NOT supported yet
*Action:   SELECT a different partitioning scheme