There are https://www.openstreetmap.org/note/4104676 https://www.openstreetmap.org/note/4104681 https://www.openstreetmap.org/note/4104680 which are indeed relevant, but I don't see any additional value they provide in clarifying the current confusing tagging.

P.S. to check ancient notes, try getting better-osm-org from https://github.com/deevroman/better-osm-org , going to Layers > Map Notes > set "All Notes"