plotly.io.to_json method does not convert large numbers correctly

[jimholl-dev]

Hi, I have some some code here, as below (edited to remove extra logs). I'm converting a plotly figure into json, and then loading it with json loads. You would expect that to preserve the original data.

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However, as you can see, the "y" data (which had previously been an array of large numbers) are wrongly converted into this "bdata" thing instead.

I was able to solve this and get the data in the format I wanted by going from 6.0.1 -> 5.24.1, which was the last stable build I was using. I think this is a pretty fundamental issue, so let me know if there's anything else I can share.