Workaround for http://openradar.appspot.com/20224363

gistfile1.m

- (instancetype)initWithCoder:(NSCoder *)coder {
    if ((self = [self init])) {
        NSDictionary *pointValue = [coder decodeObjectForKey:@"point"];
        CGPointMakeWithDictionaryRepresentation((__bridge CFDictionaryRef)pointValue, &_point);
        _number = [coder decodeDoubleForKey:@"number"];
    }
    return self;
}

- (void)encodeWithCoder:(NSCoder *)coder {
    CFDictionaryRef pointValue = CGPointCreateDictionaryRepresentation(self.point);
    [coder encodeObject:(__bridge NSDictionary *)(pointValue) forKey:@"point"];
    [coder encodeDouble:self.number forKey:@"number"];
}