Fix: Mark vehicle status bars dirty when a vehicle leaves unbunching depot (#12516)

src/vehicle.cpp

@@ -2545,6 +2545,7 @@ void Vehicle::LeaveUnbunchingDepot()
 		if (u->vehstatus & (VS_STOPPED | VS_CRASHED)) continue;
 
 		u->depot_unbunching_next_departure = next_departure;
+		SetWindowDirty(WC_VEHICLE_VIEW, u->index);
 	}
 }