Trimming the base at an edge flange's setback snaps corners within tolerance onto the trim line and merges away the zero-width run a ledge as tall as the setback left along it, so the ledge goes with the strip as a lower one does. Splitting outline edges at other cells' corners now skips points within the model's tolerance of an end, so a ledge a little taller keeps its sliver and the bend runs under it, also off the axes. Both used to fail with "sew: a degenerate edge". Nothing new is stored.
NOWN-DEV
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