ipld_to_lex only recognized blob shapes on the Json variant, which DAG-CBOR decoding never produces, so every blob ref in an imported CAR dissolved into a plain map: no record_blob association, expectedBlobs 0, and uploaded blobs stranded in temp storage forever. Blob-shaped CBOR maps (typed and legacy) now become Lex::Blob, import-time blob processing tolerates blobs that have not been uploaded yet, and an upload whose cid is already associated is promoted immediately.