[2.0.55] Pipe sprite overlay order incorrect with stopped train engine

[fmigneault]

When a train is stopped in the configuration displayed on the image, the sprite of the pipe connection to ground appears in front of the train's sprite, although the tile of the pipe is behind the track.

Looking at other trains pass over that area without stopping doesn't seem to create the same sprite ordering issue, except when hitting the last left/back-corner part of the train engine and the following wagons. This issue is best observed when the train is stopped at that location due to the train signal.

[Rseding91]

Thanks for the report however I don't believe we will be attempting to do anything about this. Factorio fakes 3D using 2D sprites as things move and in some cases you get artifacts like this. We've tried to mitigate them as much as we can but we're at a point now where changing one entities sprite layers breaks something else almost every time.