? incompatibility issue ?

[vedaal at nym.hush.com]

Gnupg 1.4.16 decrypts the above 2.x message fine when using the
--override-session-key and just changing the 1 in the shown session
key to a 10.
C:g1416>gpg --override-session-key 10:9F6E6800CFAE7749EB6C486619254B9C
c:hct.
asc
gpg: armor: BEGIN PGP MESSAGE
gpg: armor header: Version: PGP 2.6.3ia-multi06
gpg: armor header: Comment: Passphrase: sss
:encrypted data packet:
        length: 51
gpg: TWOFISH encrypted data
gpg: session key: `10:9F6E6800CFAE7749EB6C486619254B9C'
:unknown packet: type 49, length 46
dump: b2 89 33 64 9e 9f e6 56  9a 6a e7 2d da 57 2b a9  40 e3 34 5f e7
47 46 86
  24: 78 c3 13 0c 6a 5b f4 EOF
gpg: decryption okay
gpg: WARNING: message was not integrity protected

C:g1416>
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