commit c15dbd719a326be288d089de390d9da595d107a7
Author: frosch <frosch@openttd.org>
Date:   Sun Oct 30 13:51:38 2016 +0100

    -Fix: Loading of Action2 for road and tram types.

diff --git a/src/newgrf.cpp b/src/newgrf.cpp
index d685326..04baa9e 100644
--- a/src/newgrf.cpp
+++ b/src/newgrf.cpp
@@ -4993,6 +4993,8 @@ static void NewSpriteGroup(ByteReader *buf)
 				case GSF_CARGOES:
 				case GSF_AIRPORTS:
 				case GSF_RAILTYPES:
+				case GSF_ROADTYPES:
+				case GSF_TRAMTYPES:
 				{
 					byte num_loaded  = type;
 					byte num_loading = buf->ReadByte();