Merge branch 'master' into jgrpp

src/order_cmd.cpp

@@ -3338,6 +3338,10 @@ bool UpdateOrderDest(Vehicle *v, const Order *order, int conditional_depth, bool
 			}
 
 			if (v->current_order.GetDepotActionType() & ODATFB_NEAREST_DEPOT) {
+				/* If the vehicle can't find its destination, delay its next search.
+				 * In case many vehicles are in this state, use the vehicle index to spread out pathfinder calls. */
+				if (v->dest_tile == 0 && (_scaled_tick_counter & 0x3F) != (v->index & 0x3F)) break;
+
 				/* We need to search for the nearest depot (hangar). */
 				ClosestDepot closestDepot = v->FindClosestDepot();