Fix signup view redirecting to /account/signup/None

aleksis/core/templates/account/signup.html

@@ -16,7 +16,9 @@
   <form method="post" action="{% url 'account_signup' %}">
     {% csrf_token %}
     {% form form=form %}{% endform %}
-    <input type="hidden" name="{{ redirect_field_name }}" value="{{ redirect_field_value }}" />
+    {% if redirect_field_value %}
+      <input type="hidden" name="{{ redirect_field_name }}" value="{{ redirect_field_value }}" />
+    {% endif %}
     {% trans "Sign up" as caption %}
     {% include "core/partials/save_button.html" with caption=caption icon="how_to_reg" %}
   </form>

aleksis/core/views.py

@@ -1406,7 +1406,7 @@ class AccountRegisterView(SignupView):
     """
 
     form_class = AccountRegisterForm
-    success_url = "index"
+    success_url = reverse_lazy("index")
 
     def dispatch(self, request, *args, **kwargs):
         if not request.user.has_perm("core.can_register") and not request.session.get(