Issue Description:

This is an old old dupe that used to plague mods in 1.7.10, basically you drop a container and open it at the same time.

What happens:

Dropping a sigil of holding at the same time you open it with the hotkey, opens the inventory of the sigil and drops it on the ground, you can then remove any sigil from the holding sigil inventory, close the GUI, pick up the holding sigil on the ground, and remove the same sigils a second time.
sigil of transposition allows for duping of any items by duping the container the transposition sigil is holding.

What you expected to happen:

different mods have different methods of preventing this, from attaching a universal inventory to the item that is modified whether youre holding the item or not, to running multiple checks to make sure that the item is currently still on the player who is modifying it.

Steps to reproduce:

1. put holding sigil in main hand
2. press the holding sigil inventory hotkey immediately before pressing q
3. sigil inventory will open and sigil item will drop on the ground
4. remove items from sigil gui
5. pick up the sigil on the ground and remove the same items you just did in step 4
6. might take a few tries to get the timing right
7. this is a dupe that was extremely prevalent across many mods back in 1.7.10

Affected Versions (Do not use "latest"):

• BloodMagic: 2.4.3-105
• Minecraft: 1.12.2
• Forge: 14.23.5.2847