I'm finding a couple Class B Mastercoin transactions I've made in which no public key in the multisig output script is that of the sender:

• 204e02988b1a7262d90168dfe4574a69b3ab6617dddfc3737e6a296ec4d17b8f
• 1d1b0f773eb639d13151743b5794914d371284123cf516c7598c7340ddf49716
• 7ca6d02dc71e798919449e36708c1fa001797b1471e42928e2750cc03013283b

Am I missing something here, or are those now unspendable outputs?