The erratum was probably mistaken due to confusion over the fact that ESRI Shapefile and GeoJSON specify opposite winding order directions.
The shapefile spec:
The neighborhood to the right of an observer walking along the ring in vertex order is the neighborhood inside the polygon. Vertices of rings defining holes in polygons are in a counterclockwise direction. Vertices for a single, ringed polygon are, therefore, always in clockwise order.
The geojson specgeojson spec says the opposite:
A linear ring MUST follow the right-hand rule with respect to the area it bounds, i.e., exterior rings are counterclockwise, and holes are clockwise.
