It should have stuck to its guns really and just kept lying, which would be much more in line with human behaviour / "intelligence".
Doubt that it was intentionally ,, lying '' , prob it's just that the prefix is to simply produce an answer at any cost. Like the one that most of it's posts will end up with a question, to keep on the conversation going until you run out of the answer quota per day from the advanced version and a regular folk will be ,, Damn,... Got to purchase the monthly subscription then ! ''
Ah well that's the fundamental paradox of GenAI - it literally works by making stuff up ("generative" being a soothing euphemism that makes us all feel better about using it).