I am having the same issue - the email field is now styled differently for some reason.
As a work around, changing the code as suggested above works to a degree, but Contact Form 7 checks the field marked [email] to see if it is a correctly formatted email address.
If you use a workaround, then the text entered can be 'anything' making it easier for spammers to send you rubbish on the form. So ideally this still needs a 'proper' fix.