ref_transaction_commit(): fix atomicity and avoid fd exhaustion

diff --git a/t/t7406-submodule-update.sh b/t/t7406-submodule-update.sh
index 0825a928dfa2a340f6fce6e2313324bd5d63ea7f..dda3929d99aea3ea30d30b5715532fe6184d5259 100755 (executable)
--- a/t/t7406-submodule-update.sh
+++ b/t/t7406-submodule-update.sh
@@ -754,7 +754,7 @@ test_expect_success SYMLINKS 'submodule update can handle symbolic links in pwd'
 
 test_expect_success 'submodule update clone shallow submodule' '
        git clone cloned super3 &&
-       pwd=$(pwd)
+       pwd=$(pwd) &&
        (cd super3 &&
         sed -e "s#url = ../#url = file://$pwd/#" <.gitmodules >.gitmodules.tmp &&
         mv -f .gitmodules.tmp .gitmodules &&
@@ -762,6 +762,16 @@ test_expect_success 'submodule update clone shallow submodule' '
         (cd submodule &&
          test 1 = $(git log --oneline | wc -l)
         )
+)
+'
+
+test_expect_success 'submodule update --recursive drops module name before recursing' '
+       (cd super2 &&
+        (cd deeper/submodule/subsubmodule &&
+         git checkout HEAD^
+        ) &&
+        git submodule update --recursive deeper/submodule >actual &&
+        test_i18ngrep "Submodule path .deeper/submodule/subsubmodule.: checked out" actual
        )
 '
 test_done