From aaec4f2bd8a63b3dceebad7804c5897e7874833d Mon Sep 17 00:00:00 2001
From: Carny Cheng <carny.cheng@brightscope.com>
Date: Mon, 18 Mar 2013 14:22:26 -0700
Subject: [PATCH] Fixed #18839 - Field.__init__() now calls super().

---
 django/forms/fields.py            |  1 +
 docs/releases/1.6.txt             |  4 ++++
 tests/forms_tests/tests/fields.py | 14 ++++++++++++++
 3 files changed, 19 insertions(+)

diff --git a/django/forms/fields.py b/django/forms/fields.py
index e708ef846e..ecad857f72 100644
--- a/django/forms/fields.py
+++ b/django/forms/fields.py
@@ -120,6 +120,7 @@ class Field(object):
         self.error_messages = messages
 
         self.validators = self.default_validators + validators
+        super(Field, self).__init__()
 
     def prepare_value(self, value):
         return value
diff --git a/docs/releases/1.6.txt b/docs/releases/1.6.txt
index 3e6c3b8bfb..132ce68232 100644
--- a/docs/releases/1.6.txt
+++ b/docs/releases/1.6.txt
@@ -163,6 +163,10 @@ Minor features
 
 * The :djadmin:`diffsettings` comand gained a ``--all`` option.
 
+* :func:`django.forms.fields.Field.__init__` now calls ``super()``, allowing
+  field mixins to implement ``__init__()`` methods that will reliably be
+  called.
+
 Backwards incompatible changes in 1.6
 =====================================
 
diff --git a/tests/forms_tests/tests/fields.py b/tests/forms_tests/tests/fields.py
index 95e14c4434..7516de29b4 100644
--- a/tests/forms_tests/tests/fields.py
+++ b/tests/forms_tests/tests/fields.py
@@ -63,6 +63,20 @@ class FieldsTests(SimpleTestCase):
         self.assertTrue(Field(required=True).widget.is_required)
         self.assertFalse(Field(required=False).widget.is_required)
 
+    def test_cooperative_multiple_inheritance(self):
+        class A(object):
+            def __init__(self):
+                self.class_a_var = True
+                super(A, self).__init__()
+
+
+        class ComplexField(Field, A):
+            def __init__(self):
+                super(ComplexField, self).__init__()
+
+        f = ComplexField()
+        self.assertTrue(f.class_a_var)
+
     # CharField ###################################################################
 
     def test_charfield_1(self):