commit: allow partial commits with relative paths

diff --git a/t/t3200-branch.sh b/t/t3200-branch.sh
index 48d152b9a9519e00227a0877631d643ecf38e687..5fc2fb425b007c3fec736df5cf13782b8e881f58 100755 (executable)
--- a/t/t3200-branch.sh
+++ b/t/t3200-branch.sh
@@ -162,6 +162,29 @@ test_expect_success 'git branch -M baz bam should add entries to .git/logs/HEAD'
        grep "^0\{40\}.*$msg$" .git/logs/HEAD
 '
 
+test_expect_success 'git branch -M should leave orphaned HEAD alone' '
+       git init orphan &&
+       (
+               cd orphan &&
+               test_commit initial &&
+               git checkout --orphan lonely &&
+               grep lonely .git/HEAD &&
+               test_path_is_missing .git/refs/head/lonely &&
+               git branch -M master mistress &&
+               grep lonely .git/HEAD
+       )
+'
+
+test_expect_success 'resulting reflog can be shown by log -g' '
+       oid=$(git rev-parse HEAD) &&
+       cat >expect <<-EOF &&
+       HEAD@{0} $oid $msg
+       HEAD@{2} $oid checkout: moving from foo to baz
+       EOF
+       git log -g --format="%gd %H %gs" -2 HEAD >actual &&
+       test_cmp expect actual
+'
+
 test_expect_success 'git branch -M baz bam should succeed when baz is checked out as linked working tree' '
        git checkout master &&
        git worktree add -b baz bazdir &&