[PATCH] Add test for filter-branch on a subdirectory that's been added and deleted and re-added

Add a currently-failing test for the case when git-filter-branch
is run with the --subdirectory-filter referencing a folder that
has been added, deleted, and re-added. Such an action should work,
but as this test shows it ends up blowing up.
---
t/t7003-filter-branch.sh |   13 +++++++++++++
1 files changed, 13 insertions(+), 0 deletions(-)

diff --git a/t/t7003-filter-branch.sh b/t/t7003-filter-branch.sh
index 868babc..933157b 100755
--- a/t/t7003-filter-branch.sh
+++ b/t/t7003-filter-branch.sh

@@ -179,4 +179,17 @@ test_expect_success 'Name needing quotes' '

'

+test_expect_success 'Subdirectory filter on folder with non- 
contiguous history' '
+	mkdir foo &&
+	touch foo/bar &&
+	git add foo &&
+	git commit -m "Adding foo" &&
+	git rm -r foo &&
+	git commit -m "Removing foo" &&
+	mkdir foo &&
+	touch foo/bar &&
+	git commit -m "Re-adding foo" &&
+	git filter-branch --subdirectory-filter foo
+'
+
test_done
-- 
1.5.4.3.487.g5a92

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