[ipcdn] pktcRingCadence explanation changed from sig-draft-5 to sig-draft-7

PktcRingCadence   ::= TEXTUAL-CONVENTION
       STATUS        current
       DESCRIPTION
           "
             This object represents a ring cadence and repeatable
             Characteristics in a bit string format. The first two
             octets of the bit string represent the length in bits of
             the duration of the cadence (i.e., the number of bits that
             follow the third octet). The third octet is used to
             represent repeatable characteristics. 00000000 means
             repeatable, and 10000000 means non repeatable. Each bit
             after the third octet represents 50 ms and 1 represents
             ring and 0 represents silent. The first bit of the fourth
             octet is the first bit of the ring cadence. All bits are
             counted in network order such that the octet with only the
             first bit set will look like 10000000 bit sequence. A
             total of 264 bits can be set to represent 13200 ms of
             total cadence cycle. There will be at most 3 on/off
             transitions per cadence period."
       SYNTAX OCTET STRING (SIZE(4..36))

But the draft-7 has

            This object provides an encoding scheme for ring
            cadences, including repeatability characteristics. All
            fields in this object MUST be encoded in network-byte
            order.

            The first three higher order octets are reserved. The
            octets that follow are used to encode a 'bit-string', with
            each bit corresponding to 50 milliseconds. A bit value of
            '1' indicates the presence of a ring-tone and a bit value
            of '0' indicates the absence of a ring-tone, for that
            duration (50 ms) (Note: A minimum number of octets
            required to encode the bit-string MUST be used).

            The first two of the reserved octets MUST indicate the
            length of the encoded cadence (in bits) and MUST range
            between 1 and 264. (Note: The length in bits MUST also be
            consistent with the number of octets that encode the
            cadence). The MTA MUST ignore any unused bits in the last
            octet, but MUST reflect the value as provided on
            subsequent SNMP GETs.

            The third of the reserved octets indicates 'repeatability'
            and MUST be either 0x80 or 0x00 - the former value
            indicating 'repeatability' and the latter indicating 'non-
            repeatability'.

            The MTA MUST reject attempts to set a value that violates
            any of the above requirements"
          SYNTAX OCTET STRING (SIZE(4..36))

My question here is the item marked in RED is changed from draft-5 to draft-7. Is it a typo or the intended changes?? 0x80 is changed from non-repeatable(draft-5) to repeatable(draft-7)!!!!