diff-parseopt: restore -U (no argument) behavior

diff --git a/t/t3420-rebase-autostash.sh b/t/t3420-rebase-autostash.sh
index 0c4eefec760efaa238c1718ac7353e14a6e95344..4c7494cc8f77a3ff92373cb130974825c4418ada 100755 (executable)
--- a/t/t3420-rebase-autostash.sh
+++ b/t/t3420-rebase-autostash.sh
@@ -351,4 +351,22 @@ test_expect_success 'autostash is saved on editor failure with conflict' '
        test_cmp expected file0
 '
 
+test_expect_success 'autostash with dirty submodules' '
+       test_when_finished "git reset --hard && git checkout master" &&
+       git checkout -b with-submodule &&
+       git submodule add ./ sub &&
+       test_tick &&
+       git commit -m add-submodule &&
+       echo changed >sub/file0 &&
+       git rebase -i --autostash HEAD
+'
+
+test_expect_success 'branch is left alone when possible' '
+       git checkout -b unchanged-branch &&
+       echo changed >file0 &&
+       git rebase --autostash unchanged-branch &&
+       test changed = "$(cat file0)" &&
+       test unchanged-branch = "$(git rev-parse --abbrev-ref HEAD)"
+'
+
 test_done