[0.12.17] Rail Signal Issue

[Razaekel]

In certain orientations on overlapped rails, rail signals will fail to produce correct blocks, whereas in a mirrored orientation, they will produce correct blocks. I've attached a picture of the issue, and a save file with the issue laid out.

The tracks on the left side of the image have the issue, and a close look at the predicted path shows that they're being duplicated. Moving the signal forward or back while still staying in the same area doesn't improve things.

The intersections on the right side work perfectly.

[kovarex]

It is duplicate of this: https://forums.factorio.com/forum/vie ... 41&t=14347

It is planned to be fixed in 0.13