From c7f959c08f0d0d6727bc3d98853f0fa69e255957 Mon Sep 17 00:00:00 2001
From: Marius Gavrilescu <marius@ieval.ro>
Date: Wed, 25 Feb 2015 19:41:34 +0200
Subject: [PATCH] Fix editorials for contests with less than 4 problems

---
 lib/Plack/App/Gruntmaster/HTML.pm | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lib/Plack/App/Gruntmaster/HTML.pm b/lib/Plack/App/Gruntmaster/HTML.pm
index 947f039..eb3c567 100644
--- a/lib/Plack/App/Gruntmaster/HTML.pm
+++ b/lib/Plack/App/Gruntmaster/HTML.pm
@@ -284,6 +284,6 @@ sub process_ed {
 		$div->set_child_content(class => 'solution', literal $data->{solution});
 		$div->fclass('problem')->namedlink($data->{id}, $data->{name});
 	};
-	my @pb = map { @{$args{$_}} } qw/beginner easy medium hard/;
+	my @pb = map { @{$args{$_} // []} } qw/beginner easy medium hard/;
 	$tree->fclass('well')->iter3(\@pb, $iter);
 }
-- 
2.39.2