Playing as Burgundy, EU 1.07 EEP 1.4.1, I chose the option "Charles the bold never died" in "the marriage of anne of burgundy" event. Some years later, France was annexed by Orleanais, and England got the "victory in the hundred years war" event. Some days later, I got the marriage of anne of burgundy event again, but now without the option to marry france. I think the event doesn't check if the previous event has happened.