Registering existing and new users works, but is ephemeral.

templates/login/register.html

@@ -28,13 +28,21 @@ function myFunction() {
 </script>
 <div class='middle'>
 <h2>User registration - for a personal login to Troggle</h2>
-</div>
-<h3>Register a password and your email address</h3>
 <!--using template login/register.html -->
+</div>
+
+<h3>Register a password and your email address</h3>
+{% if unauthorized %}
+<span style="color:red">
+UNAUTHORIZED attempt to change password or email address. <br />
+You are not logged in as the user you are attempting to re-register.
+</span>{% endif %}
+
 <p>For previous expoers, your username must be your 'troggle id' as listed on the <a href='/people_ids'>past expoers list</a>
 <p>This will eventually sign you up automatically to the 
 <a href="https://lists.wookware.org/cgi-bin/mailman/roster/expo">expo email list</a>. 
 So type in the same email address that you use there.
+
 <div style='width: 40%' align="right">
     <form  method="post" accept-charset="utf-8">{% csrf_token %}
     {{form.as_p}}
@@ -54,8 +62,9 @@ So type in the same email address that you use there.
 so we can't automatically connect the troggle names and ids with the email addresses 
 on the email list. And we don't believe in signing people up for things without their
 direct permission anyway.
-Having said that, we <em>will</em> sign you up automatically to the expo email list as
-that is how expo manages everything and it is a condition of coming on expo.
+Having said that, when you register here we <em>will</em> sign you up automatically to 
+the expo email list as that is how expo manages everything and it is a condition of 
+coming on expo.
 
 <p>But the automatic sign-up to the email list is not working yet, and may not be before April 2025. 
 So if you don't want to miss out on anything important, make sure you sign up to the