Ticket #3370: models.py.diff

django/newforms/models.py

@@ -29 +29 @@
     opts = instance.__class__._meta
     if form.errors:
         raise ValueError("The %s could not be changed because the data didn't validate." % opts.object_name)
-    clean_data = form.clean_data
+    clean_data = dict([
+        (k, isinstance(v, unicode) and v.encode(settings.DEFAULT_CHARSET) or v)
+        for k, v in form.clean_data.items()
+    ])
     for f in opts.fields:
         if isinstance(f, models.AutoField):
             continue