🐛 Regen collar should stack with REGEN spell

[MowFord]

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OS / platform the server is running (if known)

Branch affected by issue

base

Steps to reproduce

Here is a capture of using a regen collar while having the regen spell effect on:

casting regen:

Using Regen Collar:

Updated effects:

[MowFord]

I'd bet that any equipment with an onItemUse that provides the player an effect is actually giving an enchantment that can stack with the normal version of that spell.