Hi Colin,  
Thanks for responding so promptly and cooperatively.  I now understand that the way that I am concerned about should not have been included in the changeset in NL, but that you still consider it to be a valid object.
It seems that I did not adequately explain my concern, so I will try again:
My concern was that https://www.openstreetmap.org/way/356789767 was tagged as: “landuse=forest” (despite being a linear way and not an enclosed area) and  “name=Wellsfoot Island” (despite it being in Milton Keynes and a G**gle search suggesting that Wellsfoot Island is on Dartmoor.
I see that you have since edited it again to revert it to being a section of admin boundary.  Thank you for your help. 
Cheers,
Peter