[PATCH 1/5] t9350: point out that refs are not updated correctly

[Sverre Rabbelier <srabbelier@gmail.com>]

This happens only when the corresponding commits are not exported in
the current fast-export run. This can happen either when the relevant
commit is already marked, or when the commit is explicitly marked
as UNINTERESTING with a negative ref by another argument.

This breaks fast-export basec remote helpers.

Signed-off-by: Sverre Rabbelier <srabbelier@gmail.com>
---

  Obviously the real occurance of the breakage is not as artificial
  as this test case, but it's a very simple minimal reproducer.

 t/t9350-fast-export.sh |   11 +++++++++++
 1 files changed, 11 insertions(+), 0 deletions(-)

diff --git a/t/t9350-fast-export.sh b/t/t9350-fast-export.sh
index f823c05..ed0417a 100755
--- a/t/t9350-fast-export.sh
+++ b/t/t9350-fast-export.sh
@@ -414,4 +414,15 @@ test_expect_success SYMLINKS 'directory becomes symlink'        '
 	(cd result && git show master:foo)
 '
 
+cat > expected << EOF
+reset refs/heads/master
+from $(git rev-parse master)
+
+EOF
+
+test_expect_failure 'refs are updated even if no commits need to be exported' '
+	git fast-export master..master > actual &&
+	test_cmp expected actual
+'
+
 test_done
-- 
1.7.6.385.g91185.dirty