diff -r c272d4c601cd -r eadff01e395e taskapp/events/task.py
--- a/taskapp/events/task.py	Fri Feb 26 02:52:32 2010 +0530
+++ b/taskapp/events/task.py	Fri Feb 26 11:29:25 2010 +0530
@@ -17,6 +17,10 @@
 
     task.mentors.clear()
     task.mentors.add(task.created_by)
+
+    task.comment_set.update(is_deleted=True)
+    task.comment_set.update(deleted_by=task.created_by)
+
     task.save()
     return task