As described, this would not be the same thing. If the AI is looking at the source and effectively porting it, that is likely infringement. The idea instead should be "implement Minecraft from scratch" but with behavior, graphics, etc. identical. Note that you'll need to have an AI generate assets or something since you can't just reuse textures and models.
AI models have already looked at the source of GPL software and contain it in their dataset. Adding the minecraft source to the mix wouldn't seem much different. Of course art assets and trade marks would have to be replaced. But an AI "clean room" implementation has yet to be legally tested.
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A room "as clean" as the one under dispute (chardet) is very easy to replicate.
AI 1: - (reads the source), creates a spec + acceptance criteria
AI 2: - implements from spec
AI 1 is in the position of the maintainer who facilitated the license swap.