t: test subject handling in format-patch / am pipeline

diff --git a/t/t3301-notes.sh b/t/t3301-notes.sh
index dc2e04a0161c8d6b3f6eefc1873852a377a26393..1921ca3a73370d378e6aedd0820fd8d2a030da03 100755 (executable)
--- a/t/t3301-notes.sh
+++ b/t/t3301-notes.sh
@@ -1067,7 +1067,7 @@ test_expect_success 'git notes copy diagnoses too many or too few parameters' '
 
 test_expect_success 'git notes get-ref (no overrides)' '
        git config --unset core.notesRef &&
-       unset GIT_NOTES_REF &&
+       sane_unset GIT_NOTES_REF &&
        test "$(git notes get-ref)" = "refs/notes/commits"
 '