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-rw-r--r--lib/PublicInbox/V2Writable.pm3
1 files changed, 2 insertions, 1 deletions
diff --git a/lib/PublicInbox/V2Writable.pm b/lib/PublicInbox/V2Writable.pm
index 93babed5..0a304aae 100644
--- a/lib/PublicInbox/V2Writable.pm
+++ b/lib/PublicInbox/V2Writable.pm
@@ -790,7 +790,8 @@ sub index_prepare {
                 my $git_dir = git_dir_n($self, $i);
                 -d $git_dir or next; # missing parts are fine
                 my $git = PublicInbox::Git->new($git_dir);
-                chomp(my $tip = $git->qx('rev-parse', $head));
+                chomp(my $tip = $git->qx(qw(rev-parse -q --verify), $head));
+                next if $?; # new repo
                 my $range;
                 if (defined(my $cur = $ranges->[$i])) {
                         $range = "$cur..$tip";