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-rw-r--r--lib/PublicInbox/V2Writable.pm2
1 files changed, 1 insertions, 1 deletions
diff --git a/lib/PublicInbox/V2Writable.pm b/lib/PublicInbox/V2Writable.pm
index cf44c95b..11cde627 100644
--- a/lib/PublicInbox/V2Writable.pm
+++ b/lib/PublicInbox/V2Writable.pm
@@ -1351,7 +1351,7 @@ sub index_sync {
                 }
         }
         # work forwards through history
-        index_todo($self, $sync, $_) for @{$sync->{todo}};
+        index_todo($self, $sync, $_) for @{delete($sync->{todo}) // []};
         $self->{oidx}->rethread_done($opt);
         $self->done;