Index: lib/scrum/issue_patch.rb
===================================================================
--- lib/scrum/issue_patch.rb    (.../tags/v0.13.2~2)    (revision 35)
+++ lib/scrum/issue_patch.rb    (.../branches/v0.13.2~5)        (revision 45)
@@ -21,6 +21,8 @@

         before_save :update_position, :if => lambda {|issue| issue.sprint_id_changed? and issue.is_pbi?}

+        after_save :update_sprint_of_children, :if => lambda {|issue| issue.is_pbi? or issue.is_task?}
+
         def has_story_points?
           ((!((custom_field_id = Scrum::Setting.story_points_custom_field_id).nil?)) and
            visible_custom_field_values.collect{|value| value.custom_field.id.to_s}.include?(custom_field_id))
@@ -320,6 +322,18 @@
           end
         end

+        def update_sprint_of_children
+          self.children.each do |child|
+            unless child.closed?
+              if child.sprint != self.sprint
+                child.init_journal(User.current)
+                child.sprint = self.sprint
+                child.save!
+              end
+            end
+          end
+        end
+
         def self.doer_or_reviewer_post_it_css_class(type)
           classes = ["post-it"]
           case type
Index: app/controllers/scrum_controller.rb
===================================================================
--- app/controllers/scrum_controller.rb (.../tags/v0.13.2~2)    (revision 35)
+++ app/controllers/scrum_controller.rb (.../branches/v0.13.2~5)        (revision 45)
@@ -382,11 +382,6 @@
     issue.init_journal(User.current)
     issue.sprint = sprint
     issue.save!
-    issue.children.each do |child|
-      unless child.closed?
-        move_issue_to_sprint(child, sprint)
-      end
-    end
   end

 end