Ticket #13857: default-umask-nochange.diff

docs/topics/http/file-uploads.txt

@@ -149 +149 @@
         more information about what these modes mean, see the `documentation for
         os.chmod`_
 
-        If this isn't given or is ``None``, you'll get operating-system
-        dependent behavior. On most platforms, temporary files will have a mode
-        of ``0600``, and files saved from memory will be saved using the
-        system's standard umask.
+        .. note::
 
+            If this isn't given or is ``None``, you'll get behavior dependent on
+            both the operating system and the uploaded file size. 
+            
+            * Files smaller than :setting:`FILE_UPLOAD_MAX_MEMORY_SIZE` will be
+              written with the system's standard umask, typically 0644.
+            
+            * Files larger than :setting:`FILE_UPLOAD_MAX_MEMORY_SIZE` will be
+              written with the system's standard umask for temporary files, 
+              typically 0600.
+
         .. warning::
 
             If you're not familiar with file modes, please note that the leading