There is a regression in JSON and UTF8 encoding, sometimes manifested as `invalid byte sequence in US-ASCII` or as non-escaped utf8 characters in JSON output.

There is a regression in JSON and UTF8 encoding, sometimes manifested as `invalid byte sequence in US-ASCII` or as non-escaped utf8 characters in JSON output. If this causes problems and you want a quick fix, this gist does the job. https://gist.github.com/sandstrom/5199891 https://gist.github.com/sandstrom/5199891