The sidewalk tagging on Ron Leighton Way was correct before you edited it. Now, if you are to be believed, there's a sidewalk on the inside of the roundabout (funny, I've actually been there and would have noticed). Also, the separately mapped sidewalk on the E side of Ron Leighton Way apparently isn't associated with the road any more, but it's suddenly acquired one on the W side where none exists.

Please revert your edit and be less careless in future. Pedestrian mapping in OSM is actually used by people who live here and that ALWAYS takes priority over a corporate box-ticking exercise.