Describe the bug
The potion of magnetism duplicates dropped items.

To Reproduce
Steps to reproduce the behavior:

1. Drink a Potion of Magnetism I
2. Drop an item on the floor roughly 2-3 blocks away (works more consistently with multiple items)
3. Wait a few seconds until magnetism picks the item up
4. The item(s) will have duplicated

Expected behavior
Magnetism will pick up the item from a greater range.

Info (please complete the following information):

• Modpack Version:
  • 2.77.5
  • 3.0 BETA 5
  • Other:
• Server or Singleplayer:
  • Server
  • Singleplayer
• Version the world was created on:
  • 2.77.5
  • 3.0 BETA 5
  • Other:

Additional context
Blocks that pop out items such as millstones and filtered hoppers will also achieve the same effect, though dropping an item on the ground also works. It does not seem to work with Magnetism II. I have tested in both a server an in singleplayer, and can confirm it works for both.

Holy cow I can reproduce this on dev

Fixed by 9308033 (removing magnetism)

how do we remove this from loot tables?

Magnetism was not removed. It's still in the loot table of underground chests, and even worse, you can still craft the potion ring of magnetism. Thus, infinite duping will never run out as long as you have exp.

its hella broken once you get one. now what if you have 2? gg.

Potion of magnetism presumably no longer spawns at all, nor is it craftable into a potion ring in v.3.1.1a. This issue may be closed until they somehow decide to appear again in an obscure loot table.