t/t9802: explicitly name the upstream branch to use as a base

diff --git a/t/t5000-tar-tree.sh b/t/t5000-tar-tree.sh
index e7c240fc1f8333c933f22bc1af6bf57eb9ae27cb..3fbd366ec3bf95020959041462721291d6b92cf2 100755 (executable)
--- a/t/t5000-tar-tree.sh
+++ b/t/t5000-tar-tree.sh
@@ -212,7 +212,8 @@ test_expect_success 'git-archive --prefix=olde-' '
 test_expect_success 'setup tar filters' '
        git config tar.tar.foo.command "tr ab ba" &&
        git config tar.bar.command "tr ab ba" &&
-       git config tar.bar.remote true
+       git config tar.bar.remote true &&
+       git config tar.invalid baz
 '
 
 test_expect_success 'archive --list mentions user filter' '