[0.15.15] Segfault while setting inserter logistic condition

[mr_fancy_pants]

I was setting up some chest/bot fed AM2s and more specifically was setting a logistic condition limit on the output inserter for an array of inserter when the segfault happened.

As I recall it, step by step:

- copy yellow inserter AM2 to requester chest
- set logistic condition on inserter for yellow inserter AM2->passive provider chest (yellow inserters < 100... not 100% sure on the number)
- copy red inserter AM2 to requester chest
- copy inserter from yellow inserter AM2->passive provider chest to inserter for red inserter AM2->passive provider chest
- open logistic condition for inserter for red inserter AM2->passive provider chest
- left click left side of limit condition
- segfault

Ideally, this wouldn't cause a segfault.

This may not be easily reproducible, I did a very similar pattern for many other AM2/inserter/chest sets before hitting this segfault. I will attempt to reproduce the issue again, but unfortunately the autosave is a fair ways out (~6 minutes) from when the segfault happened.

Edit: I attempted to reproduce the issue, but was unable to. Also, this is 100% vanilla, no mods.

[posila]

Thanks for the report.
It should be fixed in 0.15.16