diff-core segfault

$ mkdir a
$ cd a/
$ git-init-db
defaulting to local storage area
$ touch a
$ git-update-index --add a
$ git-commit -m 'message'
Committing initial tree 496d6428b9cf92981dc9495211e6e1120fb6f2ba
$ echo hello >a
$ git-diff-files
:100644 100644 e69de29bb2d1d6434b8b29ae775ad8c2e48c5391
0000000000000000000000000000000000000000 M      a
$ git-diff-files -B
Segmentation fault

Disclaimer: I'm running 1.0rc2. I did some searching of recent mailing
list posts and commits. I see no evidence that this has been addressed.

Could someone confirm that this exists on more recent git heads and fix
if needed?

Thanks.

--
Darrin