Because buggy mail clients exist and generate invalid
In-Reply-To headers we cannot handle across the board...
---
lib/PublicInbox/View.pm | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/lib/PublicInbox/View.pm b/lib/PublicInbox/View.pm
index ed3c96e..373545a 100644
--- a/lib/PublicInbox/View.pm
+++ b/lib/PublicInbox/View.pm
@@ -208,8 +208,8 @@ sub _th_index_lite {
my $nr_s = 0;
my $level = $map->[4];
my $idx = $map->[3];
- if (defined $irt) {
- my $irt_map = $mapping->{$irt};
+ my $irt_map = $mapping->{$irt} if defined $irt;
+ if (defined $irt_map) {
my $siblings = $irt_map->[0];
$nr_s = scalar(@$siblings) - 1;
$rv .= $pad . $irt_map->[1];
--
EW
--
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archive: https://public-inbox.org/meta/
