Enable Auto Attacks on Spells issues an auto too early, cancelling Chelonian Gate

[grantwwu]

Incredibly specific BLU issue:

Chelonian Gate is a channeled GCD, like Anatman. If you take damage equal to 30% of your max HP, it grants you a buff (Auspicious Trance) that allows you to cast Divine Cataract, another GCD, doing a fat 1000 potency.

It seems like with this option enabled, the frame that a GCD rolls you queue an auto-attack, which will intermittently cancel the channel and prevent you from casting it.

I don't seem to hit this issue if I don't swiftcast Chelonian Gate.

Video example:

https://www.youtube.com/watch?v=QGznAYe0_x8

Frame GCD rolls:

Note: The ability to automatically disable Enable Auto Attacks on Spell for BLU would, imo, be just as good of a solution.