Fixed #16138 -- Made FormMixin get_initial return a copy of the 'initial' class variable. Thanks hanson2010, wilfred@potatolondon.com and agriffis for their work on the patch.

git-svn-id: http://code.djangoproject.com/svn/django/trunk@17765 bcc190cf-cafb-0310-a4f2-bffc1f526a37

docs/ref/class-based-views.txt

@@ -431,9 +431,14 @@ FormMixin
 
     .. method:: get_initial()
 
-        Retrieve initial data for the form. By default, returns
+        Retrieve initial data for the form. By default, returns a copy of
         :attr:`.initial`.
 
+    .. admonition:: Changed in 1.4
+
+        In Django 1.3, this method was returning the :attr:`initial` class
+        variable itself.
+
     .. method:: get_form_class()
 
         Retrieve the form class to instantiate. By default

docs/releases/1.4.txt

@@ -1107,6 +1107,15 @@ passed to the markdown filter, both the ``safe_mode=True`` and
 Python-Markdown library less than 2.1, a warning is issued that the output is
 insecure.
 
+FormMixin get_initial returns an instance-specific dictionary
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+In Django 1.3, the ``get_initial`` method of the
+:class:`django.views.generic.edit.FormMixin` class was returning the
+class ``initial`` dictionary. This has been fixed to return a copy of this
+dictionary, so form instances can modify their initial data without messing
+with the class variable.
+
 Features deprecated in 1.4
 ==========================