Recreating a user after manual deletion doesn't work

auth

I deleted a demo user using the dashboard UI and now I can't recreate it with the same email address. I'm getting a 400 response from

/auth/v1/signup

/auth/v1/signup

{
  "code": "email_address_invalid",
  "message": "Email address \"myappdemo@gmail.com\" is invalid"
}

{
  "code": "email_address_invalid",
  "message": "Email address \"myappdemo@gmail.com\" is invalid"
}