RE: https://www.openstreetmap.org/relation/18852672

Hi Compo. Welcome to mapping out golf courses, and mapping in general. I want to point out some problems in hopes that you can improve your mapping going forward.

First thing is that you have deleted parts of a multipolygon relation. You can read more about multipolygons on the wiki: http://wiki.openstreetmap.org/wiki/Relation:multipolygon. When you deleted the green, you broke the relation and left the fairway without it's inner boundary (the green). 

That leads to the next problem of deleting things in order to recreate them from scratch. There is a core belief that history should be maintained instead of deleted. So it's best to modify that green instead of deleting it. See the wiki: https://wiki.openstreetmap.org/wiki/Keep_the_history

If you have any questions, please feel free to ask.
