Suppose I restore a Mac from a Time Machine backup, including the documents folder. How does macOS handle merging the locally restored version with the iCloud version? The reason I'm asking this is that DropBox cannot handle this situation. If you restore the DropBox folder from a Time Machine backup, you cannot merge it with the online folder. Currently I use another cloud storage (SugarSync) as that can merge a local folder and a cloud folder (scanning all files and checking if they're identical and only making duplicates of files that are different). But SugarSync is not really keeping up with the tech development, so I wish for another solution.