view: fix solver links with multiple messages

For redundant messages sharing Message-IDs, the link to solver
(/$INBOX/$OID/s/) was going up too many levels for /$INBOX/$MSGID/
when there were multiple messages sharing the same $MSGID.

Unfortunately, redundant messages are common with /all/
due to signature trailers.  So dynamically assigning {-spfx}
is tricky and error prone from counting `/'.

So simplify the code a bit by setting {-spfx} once per HTTP
request, instead of every single message.

1 files changed, 1 insertions, 0 deletions

diff --git a/lib/PublicInbox/Feed.pm b/lib/PublicInbox/Feed.pm
index affe0fb6..de1e7dfe 100644
--- a/lib/PublicInbox/Feed.pm
+++ b/lib/PublicInbox/Feed.pm
@@ -70,6 +70,7 @@ sub new_html {
         }
         $ctx->{-html_tip} = '<pre>';
         $ctx->{-upfx} = '';
+        $ctx->{-spfx} = '' if $ctx->{ibx}->{coderepo};
         $ctx->{-hr} = 1;
         PublicInbox::WwwStream::aresponse($ctx, \&new_html_i);
 }