Fixed bug that led to a failing runtime assert when a transition is made in an unstable state machine with orthogonal regions.

[SVN r23035]

libs/statechart

@@ -1 +1 @@
-Subproject commit 9b1bd5c3cdac3b198e86801f29f6f0ad2226f71b
+Subproject commit eaa1f4d80d5667ff30a1a7a990fd7d137c8b49b9