PM got Dynamaxed when press Mega key in Max Raid Battle

[Unknown-Tokyo]

Issue Description:

PM got Dynamaxed when press Mega key (but without mega stone in right slot ) in Max Raid Battle

What happens:

when I pressed mega key in Max Raid Battle, it got Dynamaxed.

What you expected to happen:

it should not Dynamaxed with mega key.

Steps to reproduce:

1.In my case, I used Gardevoir, with mega stone in offhand slot (I find it is wrong later... the stone should be placed in held item slot) 2.press Mega key during Max Raid Battle 3.My Gardevoir got Dynamaxed 4.I'm sure I have mega key and dynamax-Z key different and not overlapped. ...

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Affected Versions (Do not use "latest"): Replace with a list of all mods you have in.

Pokecube AIO: 3.24.0.k Minecraft: 1.19.2 Forge: 43.4.4