[0.14.7] Crash related to RailPathFinder::findPath

[Simanova]

Game crashed in the moment of rail deconstruction with multiple active trains.
Hosted (not dedicated) multiplayer game session with 2 players.

Log file -> https://deb.dyndns.info/download/factor ... evious.log
Savegame -> https://deb.dyndns.info/download/factorio/D6.zip (maybe requires mod Bio_Industries)

errorlines:
railpathfinder.cpp (130): RailPathFinder::findPath
train.cpp (1193): Train::requestPath
train.cpp (1862): Train::recalculatePath

additional information:
- happend only in 0.14.7 and maybe fixed with 0.14.8 already

[credomane]

This has already be fixed in 0.14.8.