Don B. - filed an issue for this one.
In the meantime, you can hack around the issue by updating your code to set the model param automatically:
fastembed_sparse_doc_component = FastembedSparseTextEmbedder(model="Qdrant/bm42-all-minilm-l6-v2-attentions")
fastembed_sparse_doc_component.model = "Qdrant/bm42-all-minilm-l6-v2-attentions"
hybrid_query.add_component("sparse_text_embedder", fastembed_sparse_doc_component)
fastembed_dense_doc_component = FastembedTextEmbedder(model="BAAI/bge-small-en-v1.5", prefix="Represent this sentence for searching relevant passages: ")
fastembed_dense_doc_component.model = "BAAI/bge-small-en-v1.5"
hybrid_query.add_component("dense_text_embedder", fastembed_dense_doc_component)
