(svn r16857) -Fix [FS#3036](r16652): crash when train partially in depot crashed

src/saveload/afterload.cpp

@@ -1708,18 +1708,9 @@ bool AfterLoadGame()
 
 	/* Reserve all tracks trains are currently on. */
 	if (CheckSavegameVersion(101)) {
-		Train *t;
+		const Train *t;
 		FOR_ALL_TRAINS(t) {
-			switch (t->track) {
-				case TRACK_BIT_WORMHOLE:
-					TryReserveRailTrack(t->tile, DiagDirToDiagTrack(GetTunnelBridgeDirection(t->tile)));
-					break;
-				case TRACK_BIT_DEPOT:
-					break;
-				default:
-					TryReserveRailTrack(t->tile, TrackBitsToTrack(t->track));
-					break;
-			}
+			if (t->First() == t) t->ReserveTrackUnderConsist();
 		}
 	}