commit: do not ignore an empty message given by -m ''

diff --git a/t/t5310-pack-bitmaps.sh b/t/t5310-pack-bitmaps.sh
index 6003490192880802d866ec3788facaf4dcf17147..d446706e94fb878b471e6deaebba4ec7abc76930 100755 (executable)
--- a/t/t5310-pack-bitmaps.sh
+++ b/t/t5310-pack-bitmaps.sh
@@ -53,6 +53,12 @@ rev_list_tests() {
                test_cmp expect actual
        '
 
+       test_expect_success "counting commits with limiting ($state)" '
+               git rev-list --count HEAD -- 1.t >expect &&
+               git rev-list --use-bitmap-index --count HEAD -- 1.t >actual &&
+               test_cmp expect actual
+       '
+
        test_expect_success "enumerate --objects ($state)" '
                git rev-list --objects --use-bitmap-index HEAD >tmp &&
                cut -d" " -f1 <tmp >tmp2 &&