Ah, I see! Yep, this issue might occur because of the simultaneous editing by multiple users. Unfortunately, there is no way to change this behavior now, but I’ve added this idea to the Wishlist on your behalf - Let multiple users edit the same widget simultaneously
As for the auto-save feature, it’s impossible to disable it now, but a request for this is already on the Wishlist. You can upvote it here 
- Stop auto saving in widgets