validation is breaking the amount number format decimal point

Describe your bug or feature request.

The price amount validation is breaking the number format on the decimal point when using the same number formatting for all languages.
In our scenario, we want to use the decimal point "." for all possible languages of the site. The validation removes the decimal point "." if the language's default decimal point is "," for example.

If a bug, provide steps to reproduce it from a clean install.

• Add a product with danish language
• Add a number amount that accepts number input
• In the variation form, enter 5.5
• The price in the cart will have 55 instead

Proposed Solution

The parse() function already accepts the $options['locale'] so I suggest to add the #locale option to the render array and pass it in validateForm() if it's set.