Frank defected?

On the "surivors" section under characters, if you scroll down, you'll eventually find Frank under Defectors. His picture has a purple border which means he defected somewhere and next to that it says where they defected to. For some reason it says he defected to Jacob.

Here's a link. [1]

Anyone know why this says this? Is that true and did I just miss that pretty huge event or is it a mistake?

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