Am 17.03.2015 um 08:28 schrieb Jeff King:

+test_expect_success 'create history reachable only from a bogus-named ref' '
+	test_tick && git commit --allow-empty -m master &&
+	base=$(git rev-parse HEAD) &&
+	test_tick && git commit --allow-empty -m bogus &&
+	bogus=$(git rev-parse HEAD) &&
+	git cat-file commit $bogus >saved &&
+	echo $bogus >.git/refs/heads/bogus:name &&

This causes headaches on Windows: It creates an empty file, named 
"bogus", with all the data diverted to the alternate data stream named 
"name". Needless to say that this...

+test_expect_success 'clean up bogus ref' '
+	rm .git/refs/heads/bogus:name
+'

does not remove the file "bogus", but only the alternate data stream (if 
at all---I forgot to check). How about .git/refs/heads/bogus..nam.e?

-- Hannes