fix test: setPlan as selected (and not only add it)

contribs/commercialTrafficApplications/src/main/java/org/matsim/contrib/commercialTrafficApplications/jointDemand/TourPlanning.java

@@ -177,6 +177,7 @@ static void runTourPlanningForCarriers(Carriers carriers, Scenario scenario, VRP
 			log.info("routing for carrier " + carrier.getId() + " finished. Tour planning plus routing took "
 					+ (System.currentTimeMillis() - start) / 1000 + " seconds.");
 			carrier.addPlan(carrierPlan);
+			carrier.setSelectedPlan(carrierPlan);
 		})).get();
 		;
 	}