Hey there Numac,
Thanks for the golf course contributions to OSM. I notice that you're putting in what I call "lollipops" when you are drawing the fairway around something like a sandtrap. The proper way is to just draw the complete fairway and the complete sandtrap as is, then select them both and "combine" them (in iD) into a "multipolygon". If you need help, please reach out and I'll help you along. Thanks!