rebase: find orig_head unambiguously

diff --git a/t/t3400-rebase.sh b/t/t3400-rebase.sh
index 1de0ebda25c1034fc1b343a8f0e3da9c2c7f8c6e..e6af021c10b61f565e1ebc5b0a974eb949737e07 100755 (executable)
--- a/t/t3400-rebase.sh
+++ b/t/t3400-rebase.sh
@@ -101,7 +101,14 @@ test_expect_success 'HEAD was detached during rebase' '
        test $(git rev-parse HEAD@{1}) != $(git rev-parse my-topic-branch@{1})
 '
 
+test_expect_success 'rebase from ambiguous branch name' '
+       git checkout -b topic side &&
+       git rebase master
+'
+
 test_expect_success 'rebase after merge master' '
+       git checkout --detach refs/tags/topic &&
+       git branch -D topic &&
        git reset --hard topic &&
        git merge master &&
        git rebase master &&