From 80a2389a26b7479471a2f695969a21e3dbc479c9 Mon Sep 17 00:00:00 2001
From: Matt Westcott <matt@west.co.tt>
Date: Fri, 3 Aug 2018 16:15:17 +0100
Subject: [PATCH] Cast values to string when writing to querystring

Mitigation for https://code.djangoproject.com/ticket/29627 in Django 2.1
---
 wagtail/admin/templatetags/wagtailadmin_tags.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/wagtail/admin/templatetags/wagtailadmin_tags.py b/wagtail/admin/templatetags/wagtailadmin_tags.py
index 03f97bcef..8af9ccd35 100644
--- a/wagtail/admin/templatetags/wagtailadmin_tags.py
+++ b/wagtail/admin/templatetags/wagtailadmin_tags.py
@@ -281,7 +281,7 @@ def querystring(context, **kwargs):
             querydict.pop(key, None)
         else:
             # Set the key otherwise
-            querydict[key] = value
+            querydict[key] = str(value)
 
     return '?' + querydict.urlencode()