suggestion for git stash

Hi,

"git stash" has the effect of losing the distinction between untracked changes and changes in the index.

To reproduce:
- Clone the gnulib repository or of any repository with at least 2 files.
- Make changes to two files, say, README and NEWS.
  $ git add README
- $ git status
  now reports:
# On branch master
# Changes to be committed:
#   (use "git reset HEAD <file>..." to unstage)
#
#       modified:   README
#
# Changed but not updated:
#   (use "git add <file>..." to update what will be committed)
#
#       modified:   NEWS
#

- $ git stash
- $ git stash apply
- $ git status
  now reports:
# On branch master
# Changed but not updated:
#   (use "git add <file>..." to update what will be committed)
#
#       modified:   NEWS
#       modified:   README
#
no changes added to commit (use "git add" and/or "git commit -a")

Could "git stash" be changed to memorize which changes were already scheduled for commit and which didn't?

Bruno