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-rw-r--r--lib/PublicInbox/Git.pm2
1 files changed, 1 insertions, 1 deletions
diff --git a/lib/PublicInbox/Git.pm b/lib/PublicInbox/Git.pm
index 37342d7d..e634ca55 100644
--- a/lib/PublicInbox/Git.pm
+++ b/lib/PublicInbox/Git.pm
@@ -114,7 +114,7 @@ sub _bidi_pipe {
                 return;
         }
         pipe(my ($out_r, $out_w)) or $self->fail("pipe failed: $!");
-        my $rdr = { 0 => $out_r };
+        my $rdr = { 0 => $out_r, pgid => 0 };
         my $gd = $self->{git_dir};
         if ($gd =~ s!/([^/]+/[^/]+)\z!/!) {
                 $rdr->{-C} = $gd;