I will accept there is a argument for meadows here, I wasn't aware that meadows was also used for hay although I question how well that tagging will work since a farmer may choose grain over hay on a particular year but that's not a conversation for here. As for Way 131600335, yes you did not created it but you did change it from landuse=farmland to landuse=grass in this changeset. landuse=grass is not correct here and should be changed.