From 9f4c1e64ce5b0f6967b83b5ea31083e37f7bc670 Mon Sep 17 00:00:00 2001
From: Jeremy Stretch <stretch@packetlife.net>
Date: Wed, 22 Jul 2020 17:06:08 -0400
Subject: [PATCH] Refactor clone_button() to avoid undefined URL

---
 netbox/utilities/templatetags/buttons.py | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/netbox/utilities/templatetags/buttons.py b/netbox/utilities/templatetags/buttons.py
index 85f75f79e..77320980d 100644
--- a/netbox/utilities/templatetags/buttons.py
+++ b/netbox/utilities/templatetags/buttons.py
@@ -27,12 +27,12 @@ def _get_viewname(instance, action):
 
 @register.inclusion_tag('buttons/clone.html')
 def clone_button(instance):
-    viewname = _get_viewname(instance, 'add')
+    url = reverse(_get_viewname(instance, 'add'))
 
     # Populate cloned field values
     param_string = prepare_cloned_fields(instance)
     if param_string:
-        url = '{}?{}'.format(reverse(viewname), param_string)
+        url = f'{url}?{param_string}'
 
     return {
         'url': url,