I wanted to see what tags are suggested in the item for new charging station, the popups are showing several tags, but the export to JOSM only gives one tag "amenity=charging_station" in each node.
I guess it is the osmose backend that gives this data.
Example link:
https://osmose.openstreetmap.fr/fr/map/#zoom=14&lat=48.6244&lon=2.1273&loc=11/48.5417/7.7408&level=1%2C2%2C3&item=8411
Item: 8411