Correction, I got the way #'s reversed in that comment. way/1457177951 is the one with white survey flags, way/1455164999 is the abandoned red trail.

I think that's the wrong trace- the area in this changeset is further southeast. It covers a trail marked with survey flags between Nun's Run and Forest Glen Trail (way/1455164999) that gets enough use that I'd call it "Informal". It roughly connects with a red-blazed trail (1457177951) between Nun's Run and Nun's Trail that I've labelled as "abandoned" because it's not maintained or regularly used.