Preconditions:{}

• Added two attributes e.g color and integer
• Added product type based on attributes with selected an option 'Used for product variants' for both variants
• Added product

Steps to reproduce:

1. Log in to back office.
2. Go to Product catalog / Products / Product.
3. Switch to 'Variants' tab.
4. Click on 'Generate variants' button.
5. Start typing attribute value in one of the available inputs e.g test1
6. Hit enter key on the keyboard.

Actual result:
See attached screenshots:

The attribute value is not added. The only way to add new attribute value is to click somewhere right next to the input.

Expected result:

User is able to set the attribute value by hitting the enter key on the keyboard.