User TransAct-AS tagged Way 845861056 as a primary road in Changeset 173929308 (https://www.openstreetmap.org/changeset/173929308). I removed the "highway=primary" tag from the way in Changeset 174636140 (https://www.openstreetmap.org/changeset/174636140). I forgot to add this in my previous comment in this changeset discussion.