Aplogies for the delay in the response and will ensure that these are addressed on priority.
We have looked into the changeset and the edit done was true to ground reality https://www.bing.com/maps?cp=51.507183%7E-0.137638&lvl=17.0&v=2&sV=1&pi=-14.3&style=x&dir=276.6, and this is alternative way of tagging directions which is not used very often https://wiki.openstreetmap.org/wiki/Tag:oneway=-1 hence we have revised the syntax but retained the edit.
Thanks!