OK, duplicate way removed, inner's gone, converted to a simple polygon outline. As bonus mapped a few orchards and track.

BTW, it was not only a duplicate way, it was connected at every of the 1236 nodes to the one which was there before, both with same MP tags. Anyway, the name does/did not render at any zoom level but I've seen that before on protected areas/natural reserves. Wonder how official the very long name is.