bus: Don't trigger child_updown() for rekeyed CHILD_SAs

We don't trigger it either when they are deleted individually.

src/libcharon/bus/bus.c

@@ -827,7 +827,10 @@ METHOD(bus_t, ike_updown, void,
 		enumerator = ike_sa->create_child_sa_enumerator(ike_sa);
 		while (enumerator->enumerate(enumerator, (void**)&child_sa))
 		{
-			child_updown(this, child_sa, FALSE);
+			if (child_sa->get_state(child_sa) != CHILD_REKEYED)
+			{
+				child_updown(this, child_sa, FALSE);
+			}
 		}
 		enumerator->destroy(enumerator);
 	}