{"date": "2026-09-23", "from": {"k": "unit", "s": "runner", "n": "materialization-parity > refuses an unavailable link inside a combinator item even when a null branch matches"}, "to": {"k": "unit", "s": "runner", "n": "materialization-parity > refuses an unavailable link inside a union item where the reader touches it, not at the item"}}