(svn r3906) Before removing a rail/setting the owner of a road to none check if there's a transport route at all under the bridge
--- a/tunnelbridge_cmd.c Thu Mar 16 13:23:47 2006 +0000
+++ b/tunnelbridge_cmd.c Thu Mar 16 13:35:35 2006 +0000
@@ -1298,7 +1298,7 @@
if (new_player != OWNER_SPECTATOR) {
SetTileOwner(tile, new_player);
} else {
- if ((_m[tile].m5 & 0xC0) == 0xC0) {
+ if ((_m[tile].m5 & 0xE0) == 0xE0) {
// the stuff BELOW the middle part is owned by the deleted player.
if (!(_m[tile].m5 & (1 << 4 | 1 << 3))) {
// convert railway into grass.