setup.c: support multi-checkout repo setup

diff --git a/t/t3506-cherry-pick-ff.sh b/t/t3506-cherry-pick-ff.sh
index e17ae712b1078333fa191b97764177016bc01b84..fb889ac6f05a3243b09fbb7ec05356ed61ff9cb0 100755 (executable)
--- a/t/t3506-cherry-pick-ff.sh
+++ b/t/t3506-cherry-pick-ff.sh
@@ -95,4 +95,22 @@ test_expect_success 'cherry pick a merge relative to nonexistent parent with --f
        test_must_fail git cherry-pick --ff -m 3 C
 '
 
+test_expect_success 'cherry pick a root commit with --ff' '
+       git reset --hard first -- &&
+       git rm file1 &&
+       echo first >file2 &&
+       git add file2 &&
+       git commit --amend -m "file2" &&
+       git cherry-pick --ff first &&
+       test "$(git rev-parse --verify HEAD)" = "1df192cd8bc58a2b275d842cede4d221ad9000d1"
+'
+
+test_expect_success 'cherry-pick --ff on unborn branch' '
+       git checkout --orphan unborn &&
+       git rm --cached -r . &&
+       rm -rf * &&
+       git cherry-pick --ff first &&
+       test_cmp_rev first HEAD
+'
+
 test_done