Hi wo扬,
this changeset has created errors in the OSM database regarding self intersecting ways:

https://tools.geofabrik.de/osmi/?view=geometry&lon=118.79459&lat=31.87565&zoom=14&baselayer=Geofabrik%20Standard&overlays=self_intersection_ways%2Cself_intersection_points%2Csingle_node_in_way%2Cduplicate_node_in_way

https://overpass-api.de/achavi/?changeset=150820245

Can you please fix this?

You may also like to educate yourself about how to edit public transport routes properly:

https://wiki.openstreetmap.org/wiki/Buses

Kind regards
Guido