top-level tagged .cbor bytes treated as bytes

[rooooooooob]

The CDDL:

babbage_tx_out = {
    0 : address
  , 1 : value
  , ? 2 : datum_option
  , ? 3 : script_ref
}

script_ref = #6.24(bytes .cbor script)

is generating as:

pub type ScriptRef = Vec<u8>;

as if the .cbor is ignored in this specific case. It should be generating as a Script instance (serialized as bytes then tagged), or as a newtype (after #112)

Since we have a unit test that is like this but untagged it's likely the tag that's messing things up.