remote_billing_login: Show different title for deactivate login.

corporate/tests/test_remote_billing.py

@@ -771,7 +771,7 @@ class TestGenerateDeactivationLink(BouncerTestCase):
 
         result = self.client_get(confirmation_url, subdomain="selfhosting")
         self.assert_in_success_response(
-            ["Log in to Zulip plan management", server.contact_email], result
+            ["Log in to deactivate registration for", server.contact_email], result
         )
         payload = {"full_name": "test", "tos_consent": "true"}
         result = self.client_post(confirmation_url, payload, subdomain="selfhosting")

corporate/views/remote_billing_page.py

@@ -597,6 +597,7 @@ def remote_billing_legacy_server_from_login_confirmation_link(
                 args=(confirmation_key,),
             ),
             "legacy_server_confirmation_flow": True,
+            "next_page": prereg_object.next_page,
         }
         return render(
             request,

templates/corporate/remote_billing_finalize_login_confirmation.html

@@ -2,14 +2,24 @@
 {% set entrypoint = "upgrade" %}
 
 {% block title %}
-<title>Log in to Zulip plan management for {{ host }} | Zulip</title>
+<title>
+    {% if next_page and next_page == "deactivate" %}
+    Log in to deactivate registration for {{ host }} | Zulip
+    {% else %}
+    Log in to Zulip plan management for {{ host }} | Zulip
+    {% endif %}
+</title>
 {% endblock %}
 
 {% block portico_content %}
 <div id="remote-billing-confirm-login-page" class="register-account flex full-page">
     <div class="center-block new-style">
         <div class="pitch">
+            {% if next_page and next_page == "deactivate" %}
+            <h1>Log in to deactivate registration for<br/>{{ host }}</h1>
+            {% else %}
             <h1>Log in to Zulip plan management for<br/>{{ host }}</h1>
+            {% endif %}
         </div>
         <div class="white-box">
             <form id="remote-billing-confirm-login-form" method="post" action="{{ action_url }}">