spree/spree_comments — pull request #39 by reinaris (2014-05-19 14:44:59+00:00)
Title: changed order_tabs to order_submenu

order_tabs changed to order_submenu in 2-2-stable, see:
https://github.com/spree/spree/blob/2-2-stable/backend/app/views/spree/admin/shared/_order_submenu.html.erb

submenu wasn't showing up anymore.
Fixed it.