[0.13.10] Trains- Red by logic does not allow for repath

[blackphidora]

Was prompted by https://www.reddit.com/r/factorio/comme ... _railroad/

You can see an gif here at http://imgur.com/0gfW9ew

Red by logic does not allow for train repath when there is an obvious path available. While the video is recorded in 0.13.4. It still exists in 0.13.10

End user input
I understand why a red by logic can get away with not repathing a train, say, for a crosswalk.

Suggested alternative/solution

Allow for a 2 stage red signal logic. for example.

Close signal if item > 10
Demand repathing if item > 20

[TruePikachu]

I'm not sure this will be considered resolved until 0.14, since there are a few other train pathfinding issues waiting until then.

EDIT: Duplicate of 27740.