Is Item duplication still possible in 1.14? And if yes, how :D. Thanks for any help

If someone knows, please comment here: https://bugs.mojang.com/browse/MC-63 It is confirmed for 1.13.2, but barely anyone really knows how to reproduce it, so it's currently set to "Awaiting response". Some claim that it's just pressing the X icon, some claim that they can't do it, even with very precise task killing. Clear reproduction steps would not only help in fixing the bug (which can also cause item loss, not just duplication) and also help speedrunners, because even once it gets fixed (which can still take years), it's still good to know how it works in past versions.

In 1.13.2 I would drop the item on the block surface below me, S&Q before it goes back into my inventory, reopen the world, close the game as soon as the item moves back into my inventory, reload the game, re-enter the world and have two of them.

(Not that I did this often because I don't like to cheat ;-) )

I've not tried it in 1.14 yet, I may post back if/when I test this but I am too busy right now.

Sadly (or perhaps not, because it is a bug after all, but anyway it is still disappointing in a way,) I can update to say that I have trialed the above glitch in 1.14 three times and it does not work.

What happened before was that, when you reload first, it saves, then when you next enter the world and quit promptly it saves the fact that you have the item in your inventory, but not the fact that the item is no longer in your world, so when you re-enter the game, you get the item twice. Now, it seems the game saves both of those facts, so you only get one item.

There may still be ways of item duplication in 1.14, but I am not fully aware of any.

Here are some videos on YouTube I found concerning item duplication (I have not trialled these):

If I try these, I will update to say if they worked.

Anyway, I do not think the glitches here would be a replacement of the one I was describing earlier, because that one you could do with no particular items, mobs, or blocks, anytime, anywhere, whilst costing not much IGT. These glitches may still duplicate items, but they would all be IGT-costly and require a special setup involving particular items/mobs/blocks which you have to obtain beforehand, hence I think they would have little use for a speedrun. The only one which I think might be useful is the one which only requires you to have a double chest (as they are fairly cheap and this one appears not to cost much IGT.) In any case, I think that it is still important to know whether or not items can be duplicated in 1.14.x, so that the developers can fix them.

Somebody updated the wiki 6 days ago with a slightly different setup but i couldn't replicate it in game "This method is a simple method and has been around since the beginning of the Alpha stage. This method involves dropping the items you want to dupe, and then saving and quitting.You would then reload the world, pick up the items and press Alt + F4 about 5 seconds later (on Windows). Then relaunch the game and reload the world. The items should be duplicated"

https://minecraft.gamepedia.com/Tutorials/Block_and_item_duplication

in the bug report they say that is possible to replicate the technique in 1.14.4 and has a way to replicate it in bug report MC-161408 but that bug report can only be accessed by admins

https://bugs.mojang.com/browse/MC-63 https://bugs.mojang.com/browse/MC-161408

so my guess is that there is a way to reliably set up a dupe in 1.14.4 but I don't know what it is. Maybe the guy on the wiki is right and I'm just doing it wrong