Cyclone of Tumult Skill Stage defaults to stage 1 when calculating Skill Trigger Rate of Active Spell (attached to CoC)

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What is the value from the calculation in-game?

The information is not available ingame

What is the value from the calculation in Path of Building?

https://i.imgur.com/zlEZiUR.png
https://i.imgur.com/FKlhQ1m.png

When setting the spell triggered via Cast on Critical Strike Support with the use of Cyclone of Tumult (Blazing Salvo in this case), the calculation is done on stage 1 of Cyclone of Tumult instead of the stage set, in this case stage 6.

The calculation in this example is done on aps of 4.05 for stage 1 when it should be on 8.09 of stage 6

How to reproduce the issue

You should be able to reproduce this with any Cast on Crit build using Cyclone of Tumult as proc'ing attack skill, Here is my current build with the issue in question:
https://pobb.in/4l8SCzb4IN-U

Character build code

https://pobb.in/4l8SCzb4IN-U

Screenshots

https://i.imgur.com/zlEZiUR.png
https://i.imgur.com/FKlhQ1m.png

首先加载链接的 PoB 构筑，并在将 Cyclone of Tumult 设置为阶段 6 的情况下重现 Cast on Critical Strike 计算。跟踪触发法术攻击速度的计算入口点，并验证结果使用的是 Cyclone 选定的阶段，而不是阶段 1；当显示的速度与阶段 6 的值匹配时即完成。