FIX: Duplicate a tag if image url is same to href

lib/cooked_post_processor.rb

@@ -110,7 +110,10 @@ class CookedPostProcessor
       parent = placeholder.parent
       parent.add_next_sibling(placeholder)
 
-      if parent.name == 'a' && parent["href"].present? && url != parent["href"]
+      if parent.name == 'a' && parent["href"].present?
+        if url == parent["href"]
+          parent.remove
+        else
           parent["class"] = "link"
           a.add_previous_sibling(parent)
 
@@ -119,6 +122,7 @@ class CookedPostProcessor
           lspan.add_previous_sibling(create_icon_node("link"))
         end
       end
+    end
 
     img.remove
     true