From 4d988c35061147033b806d006d28dffc1f7a4be2 Mon Sep 17 00:00:00 2001
From: belugas <belugas@openttd.org>
Date: Fri, 16 Feb 2007 01:35:18 +0000
Subject: [PATCH] (svn r8753) -Regression (r8455): Do not unilateraly decide
 that this engine is a single-headed. Only do it if it previously had no power
 and that now there is. Or something...

---
 src/newgrf.cpp | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/newgrf.cpp b/src/newgrf.cpp
index de4a9c76fb..e1ba368b77 100644
--- a/src/newgrf.cpp
+++ b/src/newgrf.cpp
@@ -215,7 +215,8 @@ static void dewagonize(int condition, int engine)
 
 	if (condition != 0) {
 		ei->unk2 &= ~0x80;
-		rvi->railveh_type = RAILVEH_SINGLEHEAD;
+		if (rvi->railveh_type == RAILVEH_WAGON)
+			rvi->railveh_type = RAILVEH_SINGLEHEAD;
 	} else {
 		ei->unk2 |= 0x80;
 		rvi->railveh_type = RAILVEH_WAGON;