Hello Numac,

Please be aware that you are improperly deleting several relations that have been set up to describe how fairways and greens are represented on the map.  You should be leaving those relations intact and modifying the members of the relations instead of deleting and recreating them or somehow breaking the relation. You can read more about multipolygons in the wiki: http://wiki.openstreetmap.org/wiki/Relation:multipolygon 

Another wiki that you should read is the "keep the history" wiki: https://wiki.openstreetmap.org/wiki/Keep_the_history which talks about the benefits of maintaining history by not deleting elements, but modifying them instead where it makes sense.

Please familiarize yourself with those before editing any more multipolygons in your golf course work. If you have any questions, please let me know. 
Thanks.
 