Hi, jengelh!
We are truly sorry for breaking your edits. 
We based our work on the existing OSM data, including satellite and street-level imagery, which was unfortunately outdated in this specific area. You didn’t mention that you based your edits on the local knowledge, so, unfortunately, we haven’t recognized that. 

Thank you very much for applying your local knowledge to correct the geometry and for your valuable contribution to improving OpenStreetMap's accuracy! 
We will be more attentive to the history of edits in the future.

Sincerely, tatsiana-krauchanka.