Issue description:

If you pick up an encoded pattern (i.e. one that has a result, and assumes the texture of a block/item when shift is held), and press shift while still holding it, the server crashes

What happens:

Server crash

What you expected to happen:

Held item assumes different texture

Steps to reproduce:

1. Encode a pattern
2. Pick it up
3. Hold Shift
4. Crash server

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

• Minecraft: 1.10.2
• Forge: 12.18.3.2284
• Refined Storage: 1.2.25
• Modpack: DW20 1.10 + Tinker Tool Leveling and VeinMiner
  Does this issue occur on a server? Yes

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

crash-2017-06-17_18.40.22-server.txt

Hrm, interesting. The pattern that you pick up, was it in your system before and was a crafting task running for said pattern?

Actually, after looking over the crashlog myself it does seem that it was an autocrafting issue, I had removed the pattern because it was causing a circular dependency, so it could have been the circular dependency causing the crash.