From 1019b6fa53a791f4db2299d25940ddc7a04aa5f2 Mon Sep 17 00:00:00 2001
From: Dominik George <nik@naturalnet.de>
Date: Sun, 19 Jan 2020 17:38:55 +0100
Subject: [PATCH] FIx exception message when merging settings

---
 aleksis/core/util/core_helpers.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/aleksis/core/util/core_helpers.py b/aleksis/core/util/core_helpers.py
index 6c6d4a359..d48564c18 100644
--- a/aleksis/core/util/core_helpers.py
+++ b/aleksis/core/util/core_helpers.py
@@ -60,7 +60,7 @@ def merge_app_settings(setting: str, original: Union[dict, list], deduplicate: b
         for entry in app_setting:
             if entry in original:
                 if not deduplicate:
-                    raise AttributeError("%s already set in original.")
+                    raise AttributeError("%s already set in original." % entry)
             else:
                 if isinstance(original, list):
                     original.append(entry)
-- 
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