Hi Guillaume,
this changeset has created errors in the OSM database regarding overlapping ways (blue markers):

https://tools.geofabrik.de/osmi/?view=routing&lon=7.28139&lat=47.97119&zoom=14&baselayer=Geofabrik%20Standard&overlays=duplicated_edges%2Cduplicated_edges%2Cduplicated_edges_areas%2Cunconnected_open_ends_1

https://overpass-api.de/achavi/?changeset=139215705

As you may know, this kind of error irritates routing software and looks ugly on the maps.

I have reverted it to fix those issues.
Kind regards
Guido