Production Options that start with numbers can't be added to cart

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: No Longer Reproducible
• Affects Version/s: 2.0.7
• Fix Version/s: 2.1.1
• Component/s: Digital Merchandise Management → Options
• Labels: None
• Sprint: FlexSprint5

Ran into an issue with products with Production Options that started with a number.

Steps to reproduce
1. Create new Option Template

• Option Field Type: Select From List
• SKU Contributor: Yes
  2. Add two values
• Name: 1 - 2 Vacancies Per Month, Key: 1-2-vacancies-per-month
• Name: 3 - 4 Vacancies Per Month, Key: 3-4-vacancies-per-month
  3. Create product using that option, and generate all SKUs
  4. Browse to Product in store front and try to add to cart.

Expected result: Product added to cart

Actual Result: Product not added to cart and red error message box appears. There is no text in the error. There are errors in log.