Bit strange, that. Macca isn't even on 'Mary Jane'. I suppose that as it had never been issued before, and as it was a Beatles song not written by either George or Ringo, then it had to be credited to Lennon/McCartney. Come And Get It was a demo for Badfinger and as it was recorded by them with Maccca as writer, could hardly be re-credited. Junk and Teddy Boy first appeared - re-recorded - on Macca's first album, so also could hardly be re-credited.