Hotkey items can be equipped while in ready to attack stance
On drawing a weapon and holding the attack button, if a Constant Effect Invisibility item is then equipped by a hotkey, and after that if the attack button is released, the invisibility effect still remains. This can be abused to get away from enemies while attacking them. Tested on Windows with f27d7c66.
In vanilla, before releasing the attack button, hotkey item is equipped only after the attack is complete.
Edited by Abdu Sharif