Issue description:

Crash when autocrafting signalum fluxduct.

What happens:

Game crashes

What you expected to happen:

Signalum fluxduct gets autocrafted

Steps to reproduce:

1. Set up a complicated system to pulverise ingots, destabilize redstone, craft electrum and signalum blend, fill fluxducts, etc etc
2. Craft some stuff, cancel crafting, try again - that kind of thing

Version (make sure you are on the latest version before reporting):

• Minecraft: 1.12.2
• Forge: 14.23.1.2573
• Refined Storage:

Does this issue occur on a server? [yes/no]

If a (crash)log is relevant for this issue, link it here:

https://pastebin.com/wfgfceR0

Duplicate #1629