[0.15.5 - 7] Train G + V + Autosave = crash

[SHOT(by)GUN]

Short video https://youtu.be/lrdUfqHQHIE?t=19

Crash when

• * Driving ahead
  * Removing carts
  * Removing train

zip containing

• * Savefile
  * gdb terminal output
  * factorio-current.log

https://www.dropbox.com/s/qtraq4bh1g146 ... t.zip?dl=0

Short description to reproduce

• * Use train + carts dynamically to connect & unconnect
  * Drive fordwads and backwards and let autosave to commence at the same time
  * Crash no matter what you do with the train

I was unable to re-produce this bug in sandbox, I hope the terminal text + log can point you where the crash occurs.