From 3944be4cec67485d724c2af9ba82ba0cf4e3aac4 Mon Sep 17 00:00:00 2001
From: Matthew Stadelman <stadelmanma@gmail.com>
Date: Mon, 5 Mar 2018 07:57:22 -0500
Subject: [PATCH] Escape all ampersands in relationship nodes with '&amp;'

Without this Nokogiri will downcase the attributes for some reason
which I assume must be expected behavior since the issue hasn't been
fixed.
Issue Reference: https://github.com/sparklemotion/nokogiri/issues/961
---
 lib/sablon/document_object_model/relationships.rb | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lib/sablon/document_object_model/relationships.rb b/lib/sablon/document_object_model/relationships.rb
index 87e53dbc..54e9eea7 100644
--- a/lib/sablon/document_object_model/relationships.rb
+++ b/lib/sablon/document_object_model/relationships.rb
@@ -104,7 +104,7 @@ def next_rid
       # Builds the relationship WordML tag and returns it
       def relationship_tag(rel_attr)
         attr_str = rel_attr.map { |k, v| %(#{k}="#{v}") }.join(' ')
-        "<Relationship #{attr_str}/>"
+        "<Relationship #{attr_str}/>".gsub(/&(?!amp;)/, '&amp;')
       end
     end
   end