sequencer: fix "rebase -i --root" corrupting author header timestamp

diff --git a/t/t3404-rebase-interactive.sh b/t/t3404-rebase-interactive.sh
index 352a52e59d1a25d6fe50c5001ba3c84e2fc4a30c..b72167ecd5068648d11de4b0279a27cd5a3eb84a 100755 (executable)
--- a/t/t3404-rebase-interactive.sh
+++ b/t/t3404-rebase-interactive.sh
@@ -1202,7 +1202,7 @@ rebase_setup_and_clean () {
                test_might_fail git branch -D $1 &&
                test_might_fail git rebase --abort
        " &&
-       git checkout -b $1 master
+       git checkout -b $1 ${2:-master}
 }
 
 test_expect_success 'drop' '
@@ -1379,4 +1379,12 @@ test_expect_success 'rebase -i --gpg-sign=<key-id> overrides commit.gpgSign' '
        test_i18ngrep "$SQ-S\"S I Gner\"$SQ" err
 '
 
+test_expect_success 'valid author header after --root swap' '
+       rebase_setup_and_clean author-header no-conflict-branch &&
+       set_fake_editor &&
+       FAKE_LINES="2 1" git rebase -i --root &&
+       git cat-file commit HEAD^ >out &&
+       grep "^author ..*> [0-9][0-9]* [-+][0-9][0-9][0-9][0-9]$" out
+'
+
 test_done