Newuser URL without key do not contains None anymore.

templates/newuser.html

@@ -1,7 +1,11 @@
 {% extends "layout.html" %}
 {% block body %}
   <center>
+  {% if newhash == 'None' %}
+  <form action="{{ url_for('new_user') }}" method=post>
+  {% else %}
   <form action="{{ url_for('new_user') }}{{ newhash  }}/" method=post>
+  {% endif %}
     <dl>
       <dt>
       {% if msg %}