Import scripts: don't include moderator_action posts when calculating bumped_at

script/import_scripts/base.rb

@@ -235,10 +235,6 @@ class ImportScripts::Base
     PostCreator.create(user, opts)
   end
 
-  def update_bumped_at
-    Post.exec_sql("update topics t set bumped_at = (select max(created_at) from posts where topic_id = t.id)")
-  end
-
   def close_inactive_topics(opts={})
     num_days = opts[:days] || 30
     puts '', "Closing topics that have been inactive for more than #{num_days} days."
@@ -254,6 +250,10 @@ class ImportScripts::Base
     end
   end
 
+  def update_bumped_at
+    Post.exec_sql("update topics t set bumped_at = (select max(created_at) from posts where topic_id = t.id and post_type != #{Post.types[:moderator_action]})")
+  end
+
   def print_status(current, max)
     print "\r%9d / %d (%5.1f%%)    " % [current, max, ((current.to_f / max.to_f) * 100).round(1)]
   end