git-apply fails on creating a new file, with both -p and --directory specified

While trying to apply a patch from one repository (created by
git-format-patch), to another (using git-am), git fails with:

"fatal: git apply: bad git-diff - inconsistent new filename on line X"

This appears to be because I was both using -p to strip some path
components, and --directory to add different ones in. Only creating
new files was affected.

This was the case in git 1.6.5.2, and also the development version
1.6.6.rc0.15.g4fa80. I have tested this on MacOS X Snow Leopard.

This appears related to the bug discussed in:
  http://marc.info/?l=git&m=122237537312597&w=2
in which the following fix was posted:
  http://git.kernel.org/?p=git/git.git;a=commitdiff;h=969c877506cf8cc760c7b251fef6c5b6850bfc19

I have included a patch below to the test cases, which currently fails
but, if I understand correctly, should succeed.

Steven Murdoch.

-- >8 --
Test git-apply creating a new file, combining --directory and -p flags

Signed-off-by: Steven Murdoch <redacted>
---
 t/t4128-apply-root.sh |   17 +++++++++++++++++
 1 files changed, 17 insertions(+), 0 deletions(-)

diff --git a/t/t4128-apply-root.sh b/t/t4128-apply-root.sh
index 8f6aea4..6cc741a 100755
--- a/t/t4128-apply-root.sh
+++ b/t/t4128-apply-root.sh

@@ -58,6 +58,23 @@ test_expect_success 'apply --directory (new file)' '
 '
 
 cat > patch << EOF
+diff --git a/c/newfile2 b/c/newfile2
+new file mode 100644
+index 0000000..d95f3ad
+--- /dev/null
++++ b/c/newfile2
+@@ -0,0 +1 @@
++content
+EOF
+
+test_expect_success 'apply --directory -p (new file)' '
+	git reset --hard initial &&
+	git apply -p2 --directory=some/sub/dir/ --index patch &&
+	test content = $(git show :some/sub/dir/newfile2) &&
+	test content = $(cat some/sub/dir/newfile2)
+'
+
+cat > patch << EOF
 diff --git a/delfile b/delfile
 deleted file mode 100644
 index d95f3ad..0000000

-- 
1.6.5.2

-- 
http://www.cl.cam.ac.uk/users/sjm217/