[Imports] Undiscussed mass-edit of amenity=fire_hydrant => emergency=fire_hydrant

[Andrew Guertin]

Hi,

It looks like the user geodreieck4711 has been performing an undiscussed 
mass edit of fire hydrants in two parts: first, about a week ago, adding 
emergency=fire_hydrant to any node with amenity=fire_hydrant, and then, 
yesterday, removing amenity=fire_hydrant from all nodes.

Example nodes:
http://www.openstreetmap.org/node/1025402881/history
http://www.openstreetmap.org/node/1134008160/history
http://www.openstreetmap.org/node/741741023/history

I have not contacted the user.

--Andrew