When we create a product variant compareAtPrice is mandatory

[CristianCucunuba]

Prerequisites

• Are you running the latest version?
• Are you able to consistently reproduce the issue?
• Did you search the issue queue for existing issue? Search issues

Issue Description

When we are creating a product variant we cannot set the price if the input for compareAtPrice is was focused before. The admin does not show any error it just don't update the price because the form validator fails. I think this is a bug because the compareAtPrice is supposed to be optional

Steps to Reproduce

1. Go to products on the admin
2. Create a new product and click to the variant
3. Add only a price and dont touche the input or set a value for compare price and click save changes
   4.Refresh the page or check the DB and the variant price is not updated

Possible Solution

The form validator is missing the optional:true property for the compareAtPrice object

Versions

3.0.0-beta.9