diff-parseopt: restore -U (no argument) behavior

diff --git a/t/t6101-rev-parse-parents.sh b/t/t6101-rev-parse-parents.sh
index 8c617981a3a06c1ff49f03a2914bfdc31c0e293c..7683e4a1142a6ee31a1f1fd51b774b19fc2c7401 100755 (executable)
--- a/t/t6101-rev-parse-parents.sh
+++ b/t/t6101-rev-parse-parents.sh
@@ -214,4 +214,12 @@ test_expect_success 'rev-list merge^-1x (garbage after ^-1)' '
        test_must_fail git rev-list merge^-1x
 '
 
+test_expect_success 'rev-parse $garbage^@ does not segfault' '
+       test_must_fail git rev-parse $EMPTY_TREE^@
+'
+
+test_expect_success 'rev-parse $garbage...$garbage does not segfault' '
+       test_must_fail git rev-parse $EMPTY_TREE...$EMPTY_BLOB
+'
+
 test_done