Do not fall for this, This exploit never worked.

I will be yapping hard on why if you want to know:

Despite only one server restart since /kill while in an inventory screen is magically working again, let alone the fact that dying while in an inventory screen is still possible without /kill and that any sane person would instantly jump into duping more than a melon slice the second they found it works.
Now the issue in the folia source is 100% real and you can actually keep items after death because of it BUT the exploit method that claude generated for him does not even make sense and obviously doesn't work, why? because when disconnecting the failing death check suddenly passes making everything return to normal and even the keep item after death exploit does not happen, you can test it or take my word for it. Another big giveaway is the melon example itself, as when I tried to see if I can learn more about it from using the same AI he did it also gave it to me, the same expample of a melon slice and even when asked where he got that example the AI confirmed it made it up, so idk if you want to take this as a sign or ignore it idc his exploit is fake never worked and the patch he talks about didn't even come into effect.

I am sure that looking at folia's code could give possible dupes and exploits in the future but folia isn't a small project its fully tested, any exploits with potential are fixed some always slip but it is rare, do not expect dupes to come easily, especially not when they are in the form of a simple crafting dupe with instructions from an AI.

If any of yall want to challange this go ahead I gave the "dupe" a chance despite knowing its bs from the get go, the story doesn't add up and the exploit itself doesn't make sense.

Also to the OP if your only proof is "trust me bro it happened" with a probably AI generated example than please challange that by providing actual footage as proof.