cache-tree: reject entries with null sha1

diff --git a/t/t6300-for-each-ref.sh b/t/t6300-for-each-ref.sh
index aea1dfc7148e4885e52a579ca60ee622c49b5693..a468041c50d9ef2c093ee4f149f297ad970065cf 100755 (executable)
--- a/t/t6300-for-each-ref.sh
+++ b/t/t6300-for-each-ref.sh
@@ -558,7 +558,7 @@ test_expect_success 'do not dereference NULL upon %(HEAD) on unborn branch' '
        test_when_finished "git checkout master" &&
        git for-each-ref --format="%(HEAD) %(refname:short)" refs/heads/ >actual &&
        sed -e "s/^\* /  /" actual >expect &&
-       git checkout --orphan HEAD &&
+       git checkout --orphan orphaned-branch &&
        git for-each-ref --format="%(HEAD) %(refname:short)" refs/heads/ >actual &&
        test_cmp expect actual
 '