Gosh - certainly not ... !
No clue, how that happened ....
I have no business in the Atlantic :-).

I was able to find the node, it's location (oddly Latitude: -0.0000005/Longitude 0.0000005).
I also can see the tags which belonged to it.
Is there a way, to revert it by a button in JOSM, or should I create it again and give the same tags?
Then the history however probably will be lost I guess.
