hide fields' requisiteness on phone-enabled registration (#88146)

src/authentic2/templates/authentic2/login_password_registration_form.html

@@ -6,7 +6,7 @@
 
 {% block registration %}
   <div>
-    <form enctype="multipart/form-data" method="post" class="pk-mark-optional-fields" novalidate>
+    <form enctype="multipart/form-data" method="post" class="{% if not is_phone_authn_active %}pk-mark-optional-fields{% else %}pk-hide-requisiteness{% endif %}">
       {% csrf_token %}
       {{ form|with_template }}
       <div class="buttons">

tests/test_registration.py

@@ -1340,6 +1340,8 @@ def test_phone_registration(app, db, settings, phone_activated_authn):
     assert not SMSCode.objects.count()
     assert not Token.objects.count()
     resp = app.get(reverse('registration_register'))
+    assert not resp.pyquery('.pk-mark-optional-fields')
+    assert resp.pyquery('.pk-hide-requisiteness')
     resp.form.set('phone_1', '612345678')
     resp = resp.form.submit().follow()
     body = json.loads(rsps.calls[-1].request.body)