VM2.0.12 , Product Details, VM custom stockable variants, undefined issue

[sergio0187]

Hi,

In my case the undefined issue for products with stockable varients disappears when set stock to parent product.
Which didn't have to in previous versions and theoretically not logic.

Another strange thing I came across is that multiple products with stockable varients with stock 1 can be ordered in same order. After order confirmed ordering product varient isn't possible anymore. Shouldn't be possible ordering after adding quantity 1 to cart.