Invalid emails don’t get “woocommerce-invalid” class

Hi,

Great plugin! I had problems with users misspelling their email addresses, so I installed it.

It also integrates easily with Woo Checkout Field Editor Pro as described in the FAQ.

Nevertheless, when I use it, and I misspell the email, I get a notice on the top of the checkout page “Email addresses do not match.”, but the email fields (both) don’t get the “woocommerce-invalid” class, so they are not shown in red.

Is it the expected behaviour? I expected both fields to turn red, or at least one of them.