In which file or files resides the HTML scrubbing of CFs?

Hi all,

The new feature in 4.4.4b2 of allowing unescaped HTML in CFs for Articles isn’t producing the expected result.

Details and resulting output are posted here, but no one else has ventured a guess.

I’d be happy to go take a look myself and see if I can untangle it - at first glance it looks like either too many nested escapes or not enough - but I’m not sure where to start looking. I haven’t found it by just grepping for html thru the lib files, for example, and similar flailing about.