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-rw-r--r--lib/PublicInbox/LeiImport.pm4
1 files changed, 2 insertions, 2 deletions
diff --git a/lib/PublicInbox/LeiImport.pm b/lib/PublicInbox/LeiImport.pm
index 9053048a..a324a652 100644
--- a/lib/PublicInbox/LeiImport.pm
+++ b/lib/PublicInbox/LeiImport.pm
@@ -7,6 +7,7 @@ use strict;
 use v5.10.1;
 use parent qw(PublicInbox::IPC PublicInbox::LeiInput);
 use PublicInbox::InboxWritable qw(eml_from_path);
+use PublicInbox::Compat qw(uniqstr);
 
 # /^input_/ subs are used by (or override) PublicInbox::LeiInput superclass
 
@@ -40,8 +41,7 @@ sub pmdir_cb { # called via wq_io_do from LeiPmdir->each_mdir_fn
         my @oidbin = $lms ? $lms->name_oidbin($folder, $bn) : ();
         @oidbin > 1 and warn("W: $folder/*/$$bn not unique:\n",
                                 map { "\t".unpack('H*', $_)."\n" } @oidbin);
-        my %seen;
-        my @docids = sort { $a <=> $b } grep { !$seen{$_}++ }
+        my @docids = sort { $a <=> $b } uniqstr
                         map { $lse->over->oidbin_exists($_) } @oidbin;
         my $vmd = $self->{-import_kw} ? { kw => $kw } : undef;
         if (scalar @docids) {