Index: /home/matthijs/workspace/redMine/app/controllers/projects_controller.rb
===================================================================
--- /home/matthijs/workspace/redMine/app/controllers/projects_controller.rb	(revision 672)
+++ /home/matthijs/workspace/redMine/app/controllers/projects_controller.rb	(working copy)
@@ -402,6 +402,11 @@
         i.project = new_project
         i.tracker = new_tracker
         i.save
+        # move time_entries for this issue to the new project
+        TimeEntry.find(:all, :conditions => ["issue_id=?",i.id]).each do |t|
+          t.project_id = new_project.id
+          t.save!
+        end
       }
       flash[:notice] = l(:notice_successful_update)
       redirect_to :action => 'list_issues', :id => @project