Item upgrades do not replace existing items

[ArmyFury]

Describe the bug

When a higher level of an item (eg: pickaxe) is bought, is does not replace the old one but simply gives the player another pickaxe

To Reproduce Steps to reproduce the behavior:

In a game, buy an item which has upgrade tiers (eg: pickaxe, axe, sword)

Expected behavior

It should remove the old item

Screenshots

System (please complete the following information):

• OS: Linux
• Server software spigot 1.21
• Server Version 1.21
• Plugin Version 24.8

Additional context

[andrei1058]

I am aware of it and we are still working on 1.21 support on #1031