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-rw-r--r--lib/PublicInbox/View.pm18
1 files changed, 11 insertions, 7 deletions
diff --git a/lib/PublicInbox/View.pm b/lib/PublicInbox/View.pm
index b8d6d85e..e5f748f7 100644
--- a/lib/PublicInbox/View.pm
+++ b/lib/PublicInbox/View.pm
@@ -1019,6 +1019,8 @@ sub _skel_ghost {
         1;
 }
 
+# note: we favor Date: here because git-send-email increments it
+# to preserve [PATCH $N/$M] ordering in series (it can't control Received:)
 sub sort_ds {
         @{$_[0]} = sort {
                 (eval { $a->topmost->{ds} } || 0) <=>
@@ -1040,9 +1042,10 @@ sub acc_topic { # walk_thread callback
         if ($has_blob) {
                 my $subj = subject_normalized($smsg->{subject});
                 $subj = '(no subject)' if $subj eq '';
+                my $ts = $smsg->{ts};
                 my $ds = $smsg->{ds};
                 if ($level == 0) { # new, top-level topic
-                        my $topic = [ $ds, 1, { $subj => $mid }, $subj ];
+                        my $topic = [ $ts, $ds, 1, { $subj => $mid }, $subj ];
                         $ctx->{-cur_topic} = $topic;
                         push @{$ctx->{order}}, $topic;
                         return 1;
@@ -1050,10 +1053,11 @@ sub acc_topic { # walk_thread callback
 
                 # continue existing topic
                 my $topic = $ctx->{-cur_topic}; # should never be undef
-                $topic->[0] = $ds if $ds > $topic->[0];
-                $topic->[1]++; # bump N+ message counter
-                my $seen = $topic->[2];
-                if (scalar(@$topic) == 3) { # parent was a ghost
+                $topic->[0] = $ts if $ts > $topic->[0];
+                $topic->[1] = $ds if $ds > $topic->[1];
+                $topic->[2]++; # bump N+ message counter
+                my $seen = $topic->[3];
+                if (scalar(@$topic) == 4) { # parent was a ghost
                         push @$topic, $subj;
                 } elsif (!defined($seen->{$subj})) {
                         push @$topic, $level, $subj; # @extra messages
@@ -1061,7 +1065,7 @@ sub acc_topic { # walk_thread callback
                 $seen->{$subj} = $mid; # latest for subject
         } else { # ghost message
                 return 1 if $level != 0; # ignore child ghosts
-                my $topic = $ctx->{-cur_topic} = [ -666, 0, {} ];
+                my $topic = $ctx->{-cur_topic} = [ -666, -666, 0, {} ];
                 push @{$ctx->{order}}, $topic;
         }
         1;
@@ -1082,7 +1086,7 @@ sub dump_topics {
         }
         # sort by recency, this allows new posts to "bump" old topics...
         foreach my $topic (sort { $b->[0] <=> $a->[0] } @$order) {
-                my ($ds, $n, $seen, $top_subj, @extra) = @$topic;
+                my ($ts, $ds, $n, $seen, $top_subj, @extra) = @$topic;
                 @$topic = ();
                 next unless defined $top_subj;  # ghost topic
                 my $mid = delete $seen->{$top_subj};