NSKeyedArchiver with circular arrays

Circular.m

    NSMutableArray* bar = [@[] mutableCopy];
    NSArray* foo = @[ bar ];
    [bar addObject:foo];
    
    //NSLog(@"%@", foo);
    
    NSString *fileName = [NSString stringWithFormat:@"%@_%@",
                          [[NSProcessInfo processInfo] globallyUniqueString], @"file.data"];
    NSURL* tempfileURL = [NSURL fileURLWithPath:[NSTemporaryDirectory()
                                                 stringByAppendingPathComponent:fileName]];
    
    NSMutableData *data = [NSMutableData data];
    NSKeyedArchiver *archiver = [[NSKeyedArchiver alloc] initForWritingWithMutableData:data];
    [foo encodeWithCoder:archiver];
    [archiver finishEncoding];
    [data writeToURL:tempfileURL atomically:YES];
    
    NSData *readData = [NSData dataWithContentsOfURL:tempfileURL];
    NSKeyedUnarchiver *unarchiver = [[NSKeyedUnarchiver alloc] initForReadingWithData:readData];
    NSArray* moo = [[NSArray alloc] initWithCoder:unarchiver];
    [unarchiver finishDecoding];
    
    NSLog(@"%@", moo);

This crashes when logging moo with

'NSInvalidArgumentException', reason: '*** -[NSMutableArray count]: method sent to an uninitialized mutable array object'

So I can archive but not unarchive a circular graph?

Documentation seems to suggest it should work with NSKeyedArchiver, just not with NSCoder.