Product with combination wrong quantities

[alexis_gyf]

Hello all

I have this problem.

I have a product with combinations (small, medium etc) that are zero quantities. On dashboard, product preview write 3 qauntities.

I try to delete the product and return it to simple product. I see there it says 3 quantities so i delete it to zero and save.

Everything ok. Then if on the product add combinations again it says 3 quantities again.

 

What is wrong? Is it a bug?

Prestashop 1.7.7.0

PHP 7.3

 

Thanks