Steps to reproduce:
go to: https://secure.phabricator.com/phragment/
see:
<body class="unhandled-exception"><div class="unhandled-exception-detail"><h1 class="unhandled-exception-title">Exception</h1><div class="unhandled-exception-body">Failed to JSON encode value (#5: Malformed UTF-8 characters, possibly incorrectly encoded): Dictionary value at key "durable-column > 0 > quicksandConfig > title" is not valid UTF8, and cannot be JSON encoded: �&� Browse Fragments.</div></div></body>