Android Studio (IntelliJ IDEA) if-else statement probably bug?

@Override
public RecyclerView.ViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {

    if (viewType == TYPE_CATEGORY) {
        View mView = LayoutInflater.from(parent.getContext()).inflate(R.layout.item_main_category, parent, false);
        ListMainCategoryViewHolder listMainCategoryViewHolder = new ListMainCategoryViewHolder(mView);
        return listMainCategoryViewHolder;
    } else if (viewType == TYPE_ITEM) {
        View mView = LayoutInflater.from(parent.getContext()).inflate(R.layout.item_main_item, parent, false);
        ListMainItemViewHolder listMainItemViewHolder = new ListMainItemViewHolder(mView);
        return listMainItemViewHolder;
    } else {
        throw new RuntimeException("view holder not found");
    }

}

Debugging I can see that it enters the first IF statement (if (viewType == TYPE_CATEGORY){...}), it executes till ListMainCategoryViewHolder listMaingCategoryViewHolder = new.., it doesn't execute the first return and instead it goes suddenly to the statement return listMainItemViewHolder; which is actually absurd to happens.

1st- Because viewType=0, TYPE_CATEGORY=0, TYPE_ITEM=1. So it cannot enter the first IF and then enter the second IF without checking the condition.

2nd- It doesnt execute a part of statement inside the first IF, especially the RETURN. What is wrong?

I've currently uploaded a video on youtube that shows how it happens, so you can see with your eyes the problem here: https://youtu.be/9D_O2ulz0e8