fsck: HEAD is part of refs

By default we looked at all refs but not HEAD.  The only thing that made
fsck not lose sight of commits that are only reachable from a detached
HEAD was the reflog for the HEAD.

This fixes it, with a new test.

Signed-off-by: Junio C Hamano <gitster@pobox.com>

1 files changed, 19 insertions, 0 deletions

diff --git a/t/t1450-fsck.sh b/t/t1450-fsck.sh
new file mode 100755
index 0000000..d3a17b4
--- /dev/null
+++ b/t/t1450-fsck.sh
@@ -0,0 +1,19 @@
+#!/bin/sh
+
+test_description='git fsck random collection of tests'
+
+. ./test-lib.sh
+
+test_expect_success setup '
+	test_commit A fileA one &&
+	git checkout HEAD^0 &&
+	test_commit B fileB two &&
+	git tag -d A B &&
+	git reflog expire --expire=now --all
+'
+
+test_expect_success 'HEAD is part of refs' '
+	test 0 = $(git fsck | wc -l)
+'
+
+test_done