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Alex
bc0ef9f3b0
Only a raise routed a source to the ClassicRAG fallback, and every graph read logs its own failure and returns empty. So a query that broke, a half-built graph and a walk that genuinely found nothing were indistinguishable, and each made the source contribute nothing at all to the answer -- no fallback, no vector blend, which is skipped by the same early return. A graph source that produces no documents now joins the classic batch, exactly as a source with no graph already does. The passage stage also rescanned every node's chunk list once per candidate. It inverts the links once instead: 7.3 ms to 0.16 ms on a 400-node subgraph at the candidate cap, with identical output.