Hi Митя Острецов, thanks for reaching out here. This area was modeled based on OSM guidelines for median of the maximum water levels waterway=riverbank#Varying_water_level_river it seemed like most imagery supports the higher water level, but I checked with Mapbox and Sentinel-2 imagery and I can see a lower water level in these two imageries. If you think that is more accurate, then I support your change here. I also noticed that the water relation www.openstreetmap.org/relation/3806013 was broken from this changeset changeset/92160222. I’m happy to make the fix if needed.

Hi Ryzen, I was removing the source tag from recently edited coastline since they’ve been updated with new imagery. I will make sure not to remove this tag for features that haven’t been reviewed yet, thanks.