For Villains, SSA1, Episode 6, Mission 2 "Get Information out of Akarist", when Fusionette spawns, there is a green system message saying "You defeated Fusionette!". After she is actually defeated, there is a second, slightly different message "You have defeated Fusionette".
While I appreciate the overwhelming confidence in my inevitable victory, announcing her defeat so prematurely seems unintentional.
And thanks to GM Solace for pointing me to the bug report forum here!