[PATCH 29/37] viewdiff: do not link to 0{7,40} blobs (again)

[Eric Wong]

We must reset diff context when starting a new file;
and we must check for all-zeroes object_ids as the
post-image correctly.
---
 lib/PublicInbox/ViewDiff.pm | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/lib/PublicInbox/ViewDiff.pm b/lib/PublicInbox/ViewDiff.pm
index 45d28e3..a804568 100644
--- a/lib/PublicInbox/ViewDiff.pm
+++ b/lib/PublicInbox/ViewDiff.pm
@@ -107,9 +107,11 @@ sub flush_diff ($$$$) {
                        $$dst .= to_html($linkify, $s);
                } elsif ($s =~ s/^(index $OID_NULL\.\.)($OID_BLOB)\b//o) {
                        $$dst .= $1 . oid($dctx, $spfx, $2);
+                       $dctx = { Q => '' };
                        $$dst .= to_html($linkify, $s) ;
-               } elsif ($s =~ s/^index ($OID_NULL)(\.\.$OID_BLOB)\b//o) {
+               } elsif ($s =~ s/^index ($OID_BLOB)(\.\.$OID_NULL)\b//o) {
                        $$dst .= 'index ' . oid($dctx, $spfx, $1) . $2;
+                       $dctx = { Q => '' };
                        $$dst .= to_html($linkify, $s);
                } elsif ($s =~ /^index ($OID_BLOB)\.\.($OID_BLOB)/o) {
                        $dctx->{oid_a} = $1;
-- 
EW

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