Admin is unable to activate the New Attributes configuration from the dashboard and gets the following error:

Error! attribute email must also be required on signup



In the network, the response to "PATCH > /api/connections/con_connectionID" is:
 

{
    "statusCode": 400,
    "error": "Bad Request",
    "message": "attribute email must also be required on signup",
    "errorCode": "invalid_body"
}