From d45a5fe4171f13e6c74e85752b9c67f4e89070fa Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?David=20Garc=C3=ADa=20Garz=C3=B3n?= <voki@canvoki.net>
Date: Wed, 10 Jun 2020 09:35:39 +0200
Subject: [PATCH] fix(more-categories): keywords is not a list

Because keywords is not a list but a string with comma separated
values, every letter was separated. Instead, just take it as a
single item and lets append it as a single item, but if empty
append an empty list.

Also, for categories, when no category and no categories plugin
is found resulted in [None].
---
 templates/article.html | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/templates/article.html b/templates/article.html
index fd28554b..0a42f459 100644
--- a/templates/article.html
+++ b/templates/article.html
@@ -16,7 +16,11 @@
 {% endif %}
 {{ super() }}
 {% if article.tags or article.category or article.keywords %}
-<meta name="keywords" content="{{ ((article.tags or [])+(article.categories or [article.category]|map("string")) + (article.keywords or []))|join(', ') }}" />
+<meta name="keywords" content="{{ (
+	(article.tags | default([]))  +
+	(article.categories | default([article.category] if article.category else []) ) +
+	([article.keywords] if article.keywords else [])
+	) | join(', ') }}" />
 {% endif %}
 
 {% from '_includes/smo_metadata.html' import smo_metadata with context %}