Swift 4 - always creates instead of update.

[igordeoliveirasa]

After findOne or all it looks like setId of LBPersistedModel is not working well.

Specifically here:

- (LBModel *)modelWithDictionary:(NSDictionary *)dictionary {
    LBModel *model = [super modelWithDictionary:dictionary];
    id obj = dictionary[@"id"];
    if (obj) {
        [(LBPersistedModel *)model setId:obj];
    }
    return model;
}