Ticket #13770: 13770-1.diff

django/forms/fields.py

@@ -601 +601 @@
         # will submit for False. Also check for '0', since this is what
         # RadioSelect will provide. Because bool("True") == bool('1') == True,
         # we don't need to handle that explicitly.
-        if value in ('False', '0'):
+        if isinstance(value, basestring) and value.lower() in ('false', '0'):
             value = False
         else:
             value = bool(value)

tests/regressiontests/forms/tests/fields.py

@@ -663 +663 @@
         self.assertEqual(False, f.clean('0'))
         self.assertEqual(True, f.clean('Django rocks'))
         self.assertEqual(False, f.clean('False'))
+        self.assertEqual(False, f.clean('false'))
+        self.assertEqual(False, f.clean('FaLsE'))
 
     # ChoiceField #################################################################