I was using the very latest JSON, but not the very latest JSON::PP, so that's a factor. Upgrading JSON::PP and specifically using that has fixed it.

In reply to Re^4: How do I make the JSON module convert true/false to 1/0 instead of a blessed Boolean object? by Cody Fendant
in thread How do I make the JSON module convert true/false to 1/0 instead of a blessed Boolean object? by Cody Fendant

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