Independence/conditional probabilities

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Does $P(A|B,C) = P(A|C) => P(A,B) = P(A)*P(B)?$ And if so, how do I prove it?

I would intuitively say this is true since $P(A|B) = P(A)$ would mean $A$ and $B$ are independent and hence $P(A,B) = P(A)*P(B)$.