From ee1ee2f85a283bf90e427b2f2bac3a2351dcc802 Mon Sep 17 00:00:00 2001
From: Erik <erikgraa@users.noreply.github.com>
Date: Sun, 12 Feb 2023 22:27:50 +0000
Subject: [PATCH] Added unless statement to avoid duplicate <category>
 elements. #383

---
 lib/jekyll-feed/feed.xml | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/lib/jekyll-feed/feed.xml b/lib/jekyll-feed/feed.xml
index 9068836f..e6d7f5df 100644
--- a/lib/jekyll-feed/feed.xml
+++ b/lib/jekyll-feed/feed.xml
@@ -91,7 +91,9 @@
       {% endif %}
 
       {% for tag in post.tags %}
-        <category term="{{ tag | xml_escape }}" />
+        {% unless post.categories contains tag %}      
+          <category term="{{ tag | xml_escape }}" />
+        {% endunless %}
       {% endfor %}
 
       {% assign post_summary = post.description | default: post.excerpt %}