Dear Masataka Shinke,

please stop your “testing” on the OpenStreetMap main API (changesets osm.org/changeset/93786505 etc., creating over 20 different versions of osm.org/way/868483991).

We have a “development API” at https://master.apis.dev.openstreetmap.org/ that you can use if you want to test something.

Best regards
Frederik Ramm
OSMF Data Working Group