Hi Marc,
this changeset has created several errors in the OSM database regarding self intersecting relation ways:

https://tools.geofabrik.de/osmi/?view=areas&lon=5.92718&lat=45.59169&zoom=13&baselayer=Geofabrik%20Standard&overlays=duplicate_node%2Csingle_node_in_way%2Cduplicate_segment%2Cway_in_multiple_rings%2Cintersection%2Cintersecting_segments%2Cring_not_closed%2Ctouching_rings%2Crole_should_be_inner%2Crole_should_be_outer%2Cinner_with_same_tags%2Cways%2Cduplicate_node%2Csingle_node_in_way%2Cduplicate_segment%2Cway_in_multiple_rings%2Cintersection%2Cintersecting_segments%2Cring_not_closed%2Ctouching_rings%2Crole_should_be_inner%2Crole_should_be_outer%2Cinner_with_same_tags%2Cways

https://overpass-api.de/achavi/?changeset=137156018

Especially the boundary relations of "Chambéry-1", "Chambéry-3", "Chambéry (canton de Chambéry-1)" and "Chambéry (canton de Chambéry-3)" are affected here.
Can you please fix this?
Kind regards
Guido