when creating artists, do not create a wiki page if there are no notes

app/models/artist.rb

@@ -145,10 +145,12 @@ class Artist < ActiveRecord::Base
         wiki_page.body = msg
         wiki_page.save
       else
+        if msg.present?
           self.wiki_page = WikiPage.new(:title => name, :body => msg)
         end
       end
     end
+  end
   
   module TagMethods
     def has_tag_alias?