From 69bfd4ffc4952360c07f62ad7bee24de5cacd933 Mon Sep 17 00:00:00 2001
From: echarp <manu@echarp.org>
Date: Fri, 9 Jun 2017 17:37:24 +0200
Subject: [PATCH] No renumbering if content is empty

---
 app/helpers/digest_helper.rb | 1 +
 1 file changed, 1 insertion(+)

diff --git a/app/helpers/digest_helper.rb b/app/helpers/digest_helper.rb
index da3696ca..c3435be2 100644
--- a/app/helpers/digest_helper.rb
+++ b/app/helpers/digest_helper.rb
@@ -3,6 +3,7 @@ module DigestHelper
   # Important mechanism, to ensure the digest will not have the same footnote
   # link multiple times
   def renumber_footnotes(id, description)
+    return if description.nil? || description.blank?
     description.gsub(/\[(\d)+\]/, "[#{id}_\\1]")
   end
 end