Windows 1.0.5 Provoking enemies interferes with the Rune Mage perk Discharge

I’m on Windows and the game version is 1.0.5
I’m playing Rune Mage, and normally when Discharge activates when casting a rune spell, the spell will target all enemies rather than just one. I’ve noticed that if the original target is changed due to an enemy provoking then even if Discharge activates, the rune spell won’t hit the original selected target, despite every other enemy being targeted. I’m not sure if this matters, since I’m having a hard time getting enemies to provoke reliably to test it, but I’m on the ultra turbo setting.