I’m pretty sure this changeset
http://www.openstreetmap.org/changeset/20364077
Destroyed these relations:
http://www.openstreetmap.org/relation/2576644
http://www.openstreetmap.org/relation/2579313
It might have been just one way:
http://www.openstreetmap.org/way/191192601/history
Is there a way to visualize this way and re-activate it in case I am correct?