Issue description: Small to large duplication of the source crafting material when using a processing recipe. Using thermal expansion caches to house resources with external storage monitoring (via external storage) those caches.

What happens: Increased source resources instead of draining source resources when processing. The secondary resource increases appropriately. I've confirmed it with wood making wood pulp, cobble making gravel, and gravel making sand. Each recipe results in more of wood, cobble, and gravel than I started with.

What you expected to happen: Decreased source resources with the recipe completing.

Steps to reproduce:

1. Have a resource in a thermal expansion cache connected via external storage.
2. Use a processing recipe to turn that resource into a derivative, specifically with an Ender IO Sag Mill.
3. The crafting monitor from Refined Storage will show a larger amount stored than the recipe requires.
4. Crafting ends and gives you back more resources than you spent with the source material.
5. Profit? No, because its cheaty.

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

• Minecraft: 1.12
• Forge: No idea.
• Refined Storage: 1.6.12
  DireWolf20 1.12 pack

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

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

[pastebin/gist/etc link here]

Also happens with the above using a thermal redstone furnace to craft glass with the source sand being in a thermal cache.

Edit: Probably should've just edited the initial post instead of commenting, but if anyone is actually looking into this I also switched from caches to storage drawers and the issue is gone. So it must be either some way refinedstorage interacts with thermal caches or vice versa.