From 0cabf3aefb9d8d261841af089e872b6e08d9e29d Mon Sep 17 00:00:00 2001
From: Claude Paroz <claude@2xlibre.net>
Date: Sat, 21 Jun 2014 11:17:10 +0200
Subject: [PATCH] [1.7.x] Prevented evaluation of a possible lazy message
As far as possible, message evaluation should not happen in field
__init__ (often run at import time).
Backport of cecbb71312a from master.
---
django/forms/fields.py | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/django/forms/fields.py b/django/forms/fields.py
index 1b64cba387..011cb7762b 100644
--- a/django/forms/fields.py
+++ b/django/forms/fields.py
@@ -527,7 +527,7 @@ class RegexField(CharField):
'Enter a valid value' is too generic for you.
"""
# error_message is just kept for backwards compatibility:
- if error_message:
+ if error_message is not None:
error_messages = kwargs.get('error_messages') or {}
error_messages['invalid'] = error_message
kwargs['error_messages'] = error_messages