Index: fields.py
===================================================================
--- fields.py	(revision 2748)
+++ fields.py	(working copy)
@@ -555,18 +555,6 @@
     def get_manipulator_field_objs(self):
         return [formfields.ImageUploadField, formfields.HiddenField]
 
-    def save_file(self, new_data, new_object, original_object, change, rel):
-        FileField.save_file(self, new_data, new_object, original_object, change, rel)
-        # If the image has height and/or width field(s) and they haven't
-        # changed, set the width and/or height field(s) back to their original
-        # values.
-        if change and (self.width_field or self.height_field):
-            if self.width_field:
-                setattr(new_object, self.width_field, getattr(original_object, self.width_field))
-            if self.height_field:
-                setattr(new_object, self.height_field, getattr(original_object, self.height_field))
-            new_object.save()
-
 class IntegerField(Field):
     empty_strings_allowed = False
     def get_manipulator_field_objs(self):