fixes #1384

app/models/post.rb

@@ -579,6 +579,10 @@ class Post < ActiveRecord::Base
       pool_string =~ /(?:\A| )pool:#{pool.id}(?:\Z| )/
     end
 
+    def belongs_to_pool_with_id?(pool_id)
+      pool_string =~ /(?:\A| )pool:#{pool_id}(?:\Z| )/
+    end
+
     def add_pool!(pool)
       return if belongs_to_pool?(pool)
       return if pool.is_deleted?

app/presenters/post_presenter.rb

@@ -146,7 +146,7 @@ class PostPresenter < Presenter
   def pool_html(template)
     html = ["<ul>"]
 
-    if template.params[:pool_id].present?
+    if template.params[:pool_id].present? && @post.belongs_to_pool_with_id?(template.params[:pool_id])
       pool = Pool.where(:id => template.params[:pool_id]).first
       return if pool.nil?
       html += pool_link_html(template, pool, :include_rel => true)