Preload wiki page content for search results.

git-svn-id: http://svn.redmine.org/redmine/trunk@13814 e93f8b46-1217-0410-a6f0-8f06a7374b81

app/models/wiki_page.rb

@@ -34,7 +34,7 @@ class WikiPage < ActiveRecord::Base
 
   acts_as_searchable :columns => ['title', "#{WikiContent.table_name}.text"],
                      :scope => joins(:content, {:wiki => :project}),
-                     :preload => {:wiki => :project},
+                     :preload => [:content, {:wiki => :project}],
                      :permission => :view_wiki_pages,
                      :project_key => "#{Wiki.table_name}.project_id"