From ac5b0d80178ec2f827390e85e6beff2962cfecc0 Mon Sep 17 00:00:00 2001
From: Jonathan G Rennison <j.g.rennison@gmail.com>
Date: Mon, 25 Jan 2021 01:31:09 +0000
Subject: [PATCH] Fix crash in auto-separation when all orders removed

---
 src/timetable_cmd.cpp | 1 +
 1 file changed, 1 insertion(+)

diff --git a/src/timetable_cmd.cpp b/src/timetable_cmd.cpp
index 072aba33dd..16a71b6bac 100644
--- a/src/timetable_cmd.cpp
+++ b/src/timetable_cmd.cpp
@@ -629,6 +629,7 @@ static inline bool IsOrderUsableForSeparation(const Order *order)
 std::vector<TimetableProgress> PopulateSeparationState(const Vehicle *v_start)
 {
 	std::vector<TimetableProgress> out;
+	if (v_start->GetNumOrders() == 0) return out;
 	for (const Vehicle *v = v_start->FirstShared(); v != nullptr; v = v->NextShared()) {
 		if (!HasBit(v->vehicle_flags, VF_SEPARATION_ACTIVE)) continue;
 		bool separation_valid = true;