lei import: set +(L|kw) on already-imported blobs

When import hits blobs it's already seen, we'll add labels
regardless in order to match the behavior of other inexact
matches.  This is useful when importing exact copies of
messages which exist in multiple mailboxes.

I noticed this when I had a message imported from my normal IMAP
`INBOX', but also copied it to a different folder for future
reference.

1 files changed, 7 insertions, 1 deletions

diff --git a/lib/PublicInbox/LeiStore.pm b/lib/PublicInbox/LeiStore.pm
index cf5a03a0..727de066 100644
--- a/lib/PublicInbox/LeiStore.pm
+++ b/lib/PublicInbox/LeiStore.pm
@@ -387,8 +387,14 @@ sub add_eml {
                 _lms_rw($self)->set_src($smsg->oidbin, @{$vmd->{sync_info}});
         }
         unless ($im_mark) { # duplicate blob returns undef
-                return unless wantarray;
+                return unless wantarray || $vmd;
                 my @docids = $oidx->blob_exists($smsg->{blob});
+                if ($vmd) {
+                        for my $docid (@docids) {
+                                my $idx = $eidx->idx_shard($docid);
+                                _add_vmd($self, $idx, $docid, $vmd);
+                        }
+                }
                 return _docids_and_maybe_kw $self, \@docids;
         }