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(svn r12138) -Fix: do not allow adding tram to rail-road crossing when there is a vehicle on it
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@ -458,6 +458,7 @@ CommandCost CmdBuildRoad(TileIndex tile, uint32 flags, uint32 p1, uint32 p2)
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if (HasBit(GetRoadTypes(tile), rt)) return_cmd_error(STR_1007_ALREADY_BUILT);
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all_bits = GetCrossingRoadBits(tile);
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if (pieces & ComplementRoadBits(all_bits)) goto do_clear;
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if (!EnsureNoVehicleOnGround(tile)) return CMD_ERROR;
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break;
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default:
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