Hello and welcome to OpenStreetMap!
You've changed a number of river names here, and people are wondering what the reason for that change was.
The river in OSM previously reflected the view in other older maps, such as OS OpenData StreetView from 2016 https://map.atownsend.org.uk/maps/map/map.html#15/51.6462/-1.8847/6 (see the "River Thames or Isis" and "River Churn" labels) and also OS OpenMap Local https://map.atownsend.org.uk/maps/map/map.html#15/51.6456/-1.8876/2 (again, "River Thames" and "River Churn" labels).
There's a discussion going on about this in the forum https://community.openstreetmap.org/t/possible-vandalism/126188 .  Please do explain there what the reason for the change was.  If you're unable to do that, we'll have to change the names back.
Best Regards,
Andy Townsend, on behalf of OSM's Data Working Group.

