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EXTENDED by graph walk: +1 segment(s) at base, +0 at top (stop: base=no_descending_continuation, top=no_ascending_continuation; min_avg=2.0%). Review before adopting. DEDUPE: absorbed 1 overlapping proposal(s): discovered-lane-52-8483-3-4321 ADOPTED (notable slice 2026-08-11): big-gain. AUTO-NAMED from gazetteer (hypothesis, unreviewed): was 'Discovered lane (52.8510, -3.4350)'.", "renamed": "2026-08-13: 'Milltir Gerrig' adopted over auto-name 'Llangynog to Cwm Pydew' \u2014 identification-certain (11 m from Wikidata pass point; en+cy Wikipedia); standing policy per Peter" }, "confidence": "B" }