Infinite Experience & Craftable Item Duplication

If you combine a book that has been written in, given a title and author, and been signed and closed, with an ordinary book and quill in a crafting table, it breaks all of the workbenches. You can infinitely disenchant items to gain unlimited experience and tools/armour/books etc.    You can craft ores into their ore block form and back again to duplicate them, and anything craftable can be duplicated if you craft repeatedly at a fast enough rate. The bug disappears if you close the game and reopen, where you would have to combine the items mentioned at the start once again to reactive it. https://youtu.be/RijIeI8IQ9k Here is the link to doing the bug on the grindstone.