Hi 30105 김유빈,
this changeset has created several errors in the OSm database, like selfintersecting and overlapping ways:

https://tools.geofabrik.de/osmi/?view=geometry&lon=43.38996&lat=14.56075&zoom=16&baselayer=Geofabrik%20Standard&overlays=self_intersection_ways%2Cself_intersection_points%2Csingle_node_in_way%2Cduplicate_node_in_way

https://tools.geofabrik.de/osmi/?view=routing&lon=43.39406&lat=14.56014&zoom=16&baselayer=Geofabrik%20Standard&overlays=duplicated_edges

https://overpass-api.de/achavi/?changeset=138939425

As you may know, this kind of errors irritates routing software and looks ugly on the maps. Can you please fix this?
Kind regards
Guido