HI Реdактор,
thanks for your question. My comment for this changeset translated to russish means: Исправить самопересечение

The view for the errors to be fixed is delivered by OSMI, which means "OSM Inspector":

https://tools.geofabrik.de/osmi/?view=areas&lon=46.46024&lat=42.12964&zoom=11&baselayer=Geofabrik%20Standard&opacity=0.67&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 

There are even much more errors as your "grassland" overlaps widely with the existing "wood" areas which were added 6 years ago.

So please respect the existing wood areas and fix your errors. I recommend to study the documentation for multipolygons first:

https://wiki.openstreetmap.org/wiki/Relation:multipolygon

Kind regards
Guido
