From 0af93e108e3dc5e0216ab45cae2dec86ee750771 Mon Sep 17 00:00:00 2001
From: Timo Graham <timograham@gmail.com>
Date: Mon, 20 Feb 2012 19:08:56 +0000
Subject: [PATCH] [1.3.X] Fixed #16758 - Added a warning regarding overriding
 default settings; thanks cyclops for the suggestion & Aymeric Augustin for
 the patch.

Backport of r17566 from trunk.

git-svn-id: http://code.djangoproject.com/svn/django/branches/releases/1.3.X@17567 bcc190cf-cafb-0310-a4f2-bffc1f526a37
---
 docs/ref/settings.txt | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/docs/ref/settings.txt b/docs/ref/settings.txt
index 1685379edf..24ccb5f949 100644
--- a/docs/ref/settings.txt
+++ b/docs/ref/settings.txt
@@ -6,6 +6,13 @@ Settings
     :local:
     :depth: 1
 
+.. warning::
+
+    Be careful when you override settings, especially when the default value
+    is a non-empty tuple or dict, like :setting:`MIDDLEWARE_CLASSES` and
+    :setting:`TEMPLATE_CONTEXT_PROCESSORS`. Make sure you keep the components
+    required by the features of Django you wish to use.
+
 Available settings
 ==================