I have reverted thsi changeset fix the massive self intersections:

https://tools.geofabrik.de/osmi/?view=geometry&lon=23.54567&lat=47.67029&zoom=11&baselayer=Geofabrik%20Standard&overlays=self_intersection_ways%2Cself_intersection_points%2Csingle_node_in_way%2Cduplicate_node_in_way

Guido