[PATCH 2/2] viewvcs: stream_blob_parse_hdr: fix BIN_DETECT retries

[Eric Wong <e@yhbt.net>]

git-cat-file(1) may return less than the $BIN_DETECT value for
some blobs, so ensure we repopulate the values in $ctx for
retries in that case, otherwise we'll lose `$ctx->{-res}' and
die when attempting to use `undef' as an array ref.
---
 lib/PublicInbox/ViewVCS.pm | 1 +
 1 file changed, 1 insertion(+)

diff --git a/lib/PublicInbox/ViewVCS.pm b/lib/PublicInbox/ViewVCS.pm
index 069937c1..9ec04f48 100644
--- a/lib/PublicInbox/ViewVCS.pm
+++ b/lib/PublicInbox/ViewVCS.pm
@@ -58,6 +58,7 @@ sub stream_blob_parse_hdr { # {parse_hdr} for Qspawn
 			warn "premature EOF on $oid $$logref\n";
 			return html_page($ctx, 500, $logref);
 		}
+		@$ctx{qw(-res -logref)} = ($res, $logref);
 		undef; # bref keeps growing
 	}
 }