Behavior of 'git add \*.txt': bug or feature?

Hi,

I find the behavior of 'git add \*.txt' strange: for adding untracked files, it considers \*.txt as a pattern to match, but for updating existing file's staged content, it seems to consider it as a filename:

$ git status # On branch master # Changed but not updated: # # modified: three.txt # modified: two.txt # # Untracked files: # # one.txt no changes added to commit (use "git add" and/or "git commit -a") $ git add -v '*.txt' add 'one.txt' $ git add -v '*.txt' $

I would have expected this "git add -v '*.txt'" to update the staged content of two.txt and three.txt too.

It this the intended behavior? If so, what's the rationale for this?

Thanks,