From 4348ac442749ad4b68dca81c223d8ba8070e654d Mon Sep 17 00:00:00 2001
From: Ralf Jung <post@ralfj.de>
Date: Mon, 10 Jun 2019 22:01:51 +0200
Subject: fix computing the form hash when there is no CAPTCHA

---
 Mailman/Cgi/listinfo.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Mailman/Cgi/listinfo.py b/Mailman/Cgi/listinfo.py
index 909e401e..6872613e 100644
--- a/Mailman/Cgi/listinfo.py
+++ b/Mailman/Cgi/listinfo.py
@@ -228,7 +228,7 @@ def list_listinfo(mlist, lang):
                 """<tr><td BGCOLOR="#dddddd">%s<br>%s</td><td>%s</td></tr>"""
                 % (pre_question, captcha_question, captcha_box))
         else:
-            captcha_idx = 0 # just to have something to include in the hash below
+            captcha_idx = "" # just to have something to include in the hash below
         # fill form
         replacements['<mm-subscribe-form-start>'] += (
                 '<input type="hidden" name="sub_form_token" value="%s:%s:%s">\n'
-- 
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