mingw: fix mingw_open_append to work with named pipes

diff --git a/t/t9350-fast-export.sh b/t/t9350-fast-export.sh
index d5679ffb873b4657cd953f7b318a231f56671f20..6a392e87bcc17712961c548c0ee84e11269aef0f 100755 (executable)
--- a/t/t9350-fast-export.sh
+++ b/t/t9350-fast-export.sh
@@ -538,4 +538,22 @@ test_expect_success 'when using -C, do not declare copy when source of copy is a
        test_cmp expected actual
 '
 
+test_expect_success 'merge commit gets exported with --import-marks' '
+       test_create_repo merging &&
+       (
+               cd merging &&
+               test_commit initial &&
+               git checkout -b topic &&
+               test_commit on-topic &&
+               git checkout master &&
+               test_commit on-master &&
+               test_tick &&
+               git merge --no-ff -m Yeah topic &&
+
+               echo ":1 $(git rev-parse HEAD^^)" >marks &&
+               git fast-export --import-marks=marks master >out &&
+               grep Yeah out
+       )
+'
+
 test_done