'RR does not exist' seen when using XFR adapters

See attached email posted to the users list. Basically the following log is seen when using XFR adapters but not file adapter:

Jan 30 14:50:01 index ods-signerd: [rrset] RR does not exist: dstest1. 300 IN DNSKEY 256 3 8 AwEAAaEJGx4v9YA1f72qsL/xkRxlnBl16yd18NOfePwjELDzwGXhssoMYnxf0fpjKBun6XN7XZt3IhdjCTCsh9r+g3G6nh7I8QJos4UTDFF5tH86tnA2GHVthlL8MG9To9/f7HOlLaM+biW9GEjSKvEbkN3tnDKsHTNfOqrb8JTrtXbT ;

{id = 64990 (zsk), size = 1024b}

Jan 30 14:50:01 index ods-signerd: [rrset] RR does not exist: dstest1. 300 IN DNSKEY 256 3 8 AwEAAbp1warmQfva92fTH/wgzFSjC7o1IG/rrCXp+wL/7zKTP0xUPRZj0Fy2aBqTjrFLcRrZMSSmv3hP8Ir6EKfzvyh5NMzE1DIggYUhmjiyu+eO3bjmiapKlMw7jIvX0hM2EqJk/o890Oz8D6X1yRGN/uTacO7BNBNOCSpSXLJX7NTH ;

{id = 16159 (zsk), size = 1024b}