Hello PedestrianMapping_HopMapper, I've partially reverted this changeset with changeset 170227725. The geometry changes you've made here caused sidewalks to cross a building and through a private parking area. I tried to leave the correct changes intact.

I understand this is part of an organized editing project by Meta. I've reviewed https://tasks.openstreetmap.us/projects/869 https://maproulette.org/challenge/51162/task/294635175 and https://wiki.openstreetmap.org/wiki/Organised_Editing/Activities/Meta/Pedestrian_Mapping but can't quite make out what's going on here. I'd love to know:
 - Why are these challenges being created in particular spots (what's a "complex intersection"?)
 - What observations will trigger a change, and what are the recommended changes?
 - What are the procedures for task validation?

Thanks, jmapb