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

https://tools.geofabrik.de/osmi/?view=geometry&lon=7.39992&lat=10.50027&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=146690044

This is a very typical error of JOSM users, who just press "o" and do not check the results e.g. by using the internal validator:

https://wiki.openstreetmap.org/wiki/JOSM/Validator

Can you please fix this?
Kind regards
Guido