ref_transaction_commit(): fix atomicity and avoid fd exhaustion

diff --git a/t/t7406-submodule-update.sh b/t/t7406-submodule-update.sh
index 0246e80b1af98fe213b06beb8de0a9fec464b9f2..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 &&
@@ -774,5 +774,4 @@ test_expect_success 'submodule update --recursive drops module name before recur
         test_i18ngrep "Submodule path .deeper/submodule/subsubmodule.: checked out" actual
        )
 '
-
 test_done