Aprove answer
NSMutableArray *originalArray = [self arrayFromCloudKit]; // fetch from CloudKit

// now the user wants it sorted alphabetically 
NSMutableArray *alphabeticallySorted = originalArray.mutableCopy
[self storeOriginalArray:originalArray];
[self displayUIWithArray:alphabeticallySorted];

// but if the user changes their mind, you just fetch the original and delete the sorted
NSMutableArray *originalArray = [self getOriginalArray];
[self displayUIWithArray:originalArray];

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