Bug 572058 - [Robotics] It should be possible to use a (sub-) systems for the definition of a larger system - Correct regression that prevented correct filtering. - Avoid modification without transaction (RoboticsStereotypeME) Change-Id: Ie34c401b28f6e7ef6a9cd9f10eeb6715277da823 Signed-off-by: Ansgar Radermacher <ansgar.radermacher@cea.fr>