merge-one-file: fix broken merges with alternate work trees

diff --git a/t/t4200-rerere.sh b/t/t4200-rerere.sh
index a6bc028a57115729d38e4b228cd259880d0bf6f8..bb402c3780356d1feab4e8b7c9b9624495d3e176 100755 (executable)
--- a/t/t4200-rerere.sh
+++ b/t/t4200-rerere.sh
@@ -217,7 +217,22 @@ test_expect_success 'rerere.autoupdate' '
        git checkout version2 &&
        test_must_fail git merge fifth &&
        test 0 = $(git ls-files -u | wc -l)
+'
 
+test_expect_success 'merge --rerere-autoupdate' '
+       git config --unset rerere.autoupdate
+       git reset --hard &&
+       git checkout version2 &&
+       test_must_fail git merge --rerere-autoupdate fifth &&
+       test 0 = $(git ls-files -u | wc -l)
+'
+
+test_expect_success 'merge --no-rerere-autoupdate' '
+       git config rerere.autoupdate true
+       git reset --hard &&
+       git checkout version2 &&
+       test_must_fail git merge --no-rerere-autoupdate fifth &&
+       test 2 = $(git ls-files -u | wc -l)
 '
 
 test_done