Thank you for reaching out. I was making changes to help improve the results I was getting to recreate the golf course in a video game. I admit, I am a novice with OSM and was following advice I got from a youtube video from a few years ago. Before my edits, the fairways were wrapped around the entire green, sharing nodes. This led to multiple transitions in the game, making it unrealistic. I apologize for any inconvenience. Is there a way to go back and erase or undo my edits?