OT, but: not a sockpuppet, but I also don’t have equipment for full-blown from-scratch mapping, I tend to just fix small things I notice while in some area (or, as in this case, otherwise).

AFAIU OSM should show the *current* state, and this should be mapped as temporarily removed or under construction, and then changed back to normal later when it re-enters normal operation.

I’m not entirely sure whether the path is correctly connected to both Dorfplatz (road) on the south and Grüner Weg (road) on the north, as it only shows the former, but if I move the connecting node in iD, it moves both roads, so I think it should be.

Ah, okay. Königswinter Drachenfelsbahn ist im Moment auch doppelt angelegt, vielleicht kommt das auch daher? AFAICT ist der südöstlichere der beiden Punkte falsch, aber ich war länger nicht mehr dort.