Ok, I found some:
- https://www.openstreetmap.org/node/10200623600/history
- https://www.openstreetmap.org/node/10200623593/history
- https://www.openstreetmap.org/node/10067434280/history
It looks like the error was not from my import, after all. The error happened on V2, where somebody was doing a task from the MapRoulette challenge I created.
I’m inexperienced with maproulette, but I don’t think my challenge would in any way cause these bad tags to be created without knowledge of the editor.
It seems a common theme in all the examples is user hwierzbicki. Maybe I should message him.
@tekim thanks for reviewing the data.