Issue description:

Infinite portable grids

What happens:

Portable grid dupes

What you expected to happen:

... no dupe?

Steps to reproduce:

1. Craft Portable Grid
2. Place Portable Grid
3. ...
4. Profit

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

• Minecraft: 1.11.2
• Forge: 13.20.0.2298
• Refined Storage: 1.4.5

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

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

nope