Removing /glow with grindstone produces XP

[melaniebeedot]

We're a Paper 1.21.1 server with EpicRename 3.12

I've had a player report this bug to me, that with the unenchanted armor they've /glowed for shiny effect, they found later they cannot add enchantments to. [Split into issue #201]

They were also unable to use /unglow to remove the glow, which I think is already a bug that's been reported for 1.21

They were, however, able to use a grindstone to remove the /glow, and discovered another bug: it produces a fair amount of XP to the player each time, an infinite XP bug if you will. Screenshots attached show the player at 0 XP lvl, and how many XP lvls gained from removing /glow via grindstone for each piece.

[JustBru00]

@melaniebeedot Thanks for the report. The issues you are seeing are related to #198. It appears that since 1.20.4 spigot changed the maximum enchantment levels supported. This is causing the issues you are seeing.
I had previously tried working on this update, but I am running into some extremely strange behavior where enchantment glow stays on an item even after enchantments are removed.

I will try to have a fix for you on this in the next 2 weeks.