"git reset --hard" leaves empty directories that shouldn't exist

I've been exploring the potential for git-sync, and I found some odd
behavior with "git reset --hard". It appears that if the current tree
has some directory structure (at least two levels deep) that does not
exist in the tree being reset to, that empty directories are left
around after the reset:

	$ git --version
	git version 1.2.0.gf6e8
	$ git init-db
	defaulting to local storage area
	$ touch file; git add file; git commit -m "Add file"
	Committing initial tree df2b8fc99e1c1d4dbc0a854d9f72157f1d6ea078
	$ git tag OLD
	$ mkdir -p a/b/c; touch a/b/c/foo; git add a/b/c/foo; git commit -m
	"Add foo"
	$ git checkout -b bogus
	$ git reset --hard OLD
	$ find a
	a
	a/b
	a/b/c
	$

Is this operator error? I don't see any extra options I might be
missing in the documentation of git-reset.

I haven't looked into the implementation at all yet to see what might
be going on.

-Carl

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