Hello,
"fixing value to follow convention tagging schema" doesn't explain what you did or why you did it here.  See https://osm.mapki.com/history/relation/7226121 .
Another mapper has changed boundary=region to boundary=administrative; you then change the admin_level.  Did you discuss your edit with the local OSM community and are they happy that the new hierarchy of admin levels in this area is correct?
Best Regards,
Andy
