How to connect the registration form from the core?

Question

1C-Bitrix

There is a component:

<?$APPLICATION->IncludeComponent(
                        "bitrix:system.auth.form",
                        "demo",
                        Array(
                          "FORGOT_PASSWORD_URL" => "/login/?forgot_password=yes",
                          "PROFILE_URL" => "/login/user.php",
                          "REGISTER_URL" =>"/login/?register=yes",
                          "SHOW_ERRORS" => "N"
                        )
                      );?>

All fields work except this one:
"REGISTER_URL" =>"/login/?register=yes",

Opens the authorization field and not the registration field.
It says here:

?register=yes will include system.auth.registration (registration),

.

But something goes wrong. What is my problem?