From 2bf182fb366e3feb5cdc917ba8c62fb5143e6c6b Mon Sep 17 00:00:00 2001
From: frosch <frosch@openttd.org>
Date: Sun, 21 Sep 2008 14:03:47 +0000
Subject: [PATCH] (svn r14369) -Fix: Enforce non-front engines to be stopped.
 This could be caused by old savegames resp. their conversion, and causes
 trouble for e.g. autoreplace.

---
 src/vehicle.cpp | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/src/vehicle.cpp b/src/vehicle.cpp
index 193562abfb..1e6ffb3748 100644
--- a/src/vehicle.cpp
+++ b/src/vehicle.cpp
@@ -264,6 +264,11 @@ void AfterLoadVehicles(bool clear_te_id)
 		}
 	}
 
+	/* Stop non-front engines */
+	FOR_ALL_VEHICLES(v) {
+		if (v->type == VEH_TRAIN && IsTrainEngine(v) && !IsFrontEngine(v)) v->vehstatus |= VS_STOPPED;
+	}
+
 	FOR_ALL_VEHICLES(v) {
 		switch (v->type) {
 			case VEH_ROAD:
@@ -1110,6 +1115,7 @@ CommandCost CmdStartStopVehicle(TileIndex tile, uint32 flags, uint32 p1, uint32
 	Vehicle *v = GetVehicle(p1);
 
 	if (!CheckOwnership(v->owner)) return CMD_ERROR;
+	if (!v->IsPrimaryVehicle()) return CMD_ERROR;
 
 	switch (v->type) {
 		case VEH_TRAIN: