Precursor Emblem Iron Reflex at max charges works even at 0 charges

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• I'm running the latest version of Path of Building and I've verified this by checking the changelog

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What platform are you running Path of Building on?

Windows

What is the behaviour in-game?

The ring should only provide the Iron reflex keystone effect only when frenzy charges are maximum

What is the behaviour in Path of Building?

The keystone effect works as soon as equipping the item, even if you are not at max charges.

How to reproduce the issue

Add Grace
Add precursor emblem with Iron reflex at maximum charges

It should convert evasion to armour, even when frenzy charges are not enabled.

PoB for PoE1 build code

https://pobb.in/mNp-b5w7rpVv

Screenshots

从 issue 中链接的 PoB build code 开始，复现 Grace、Precursor's Emblem modifier、Iron Reflex 与 frenzy-charge state 之间的交互。跟踪评估条件性 item effects 的 entry point，并验证 keystone 在低于最大 charges 时处于非活动状态、在达到最大 charges 时处于活动状态；确认最终的 armour 和 evasion 值。