I tried to read the inventory of a minecart with chest in the nether and it crashed.

This is the crashlog:
https://gist.github.com/wesserboy/2d4e6fae023ca07f407764242f2de4eb

I had a quick look at the code, and i thought it might have something to do with the nether having world id -1? not sure though ;)

Indeed, not sure why I thought that could ever work...