thanks for the fix Aleksa. This edit you fixed was the result of vandalism to the map by Pokemon Go editors. Please be on the lookout for these edits as you work to fix coastlines. They are adding `natural=coastline` in places where there are not any coastline and adding beaches. Please see this thread for more info: https://community.openstreetmap.org/t/beware-of-fake-beaches-pokemon-go/112413

In this case the water had the pond tag before. Can you look back at the history and restore? Otherwise feel free to write us data@osmfoundation.org

Elliott Plack  
Member, Data Working Group  
OpenStreetMap Foundation
