Core 5.6 UTF8 validation breaks geshifiler

Dww:
As per http://drupal.org/node/208587 we had to disable code filter on d.o due to installing 5.6 core with the new UTF-8 validation stuff (http://drupal.org/node/208564). :(

I don't know more than that, perhaps killes can add more details if he has them.

Heine

The issue is during the prepare step in the hook_filter implementation where invalid bytes are added. This happens before the code is sent to filter_xss which will return an empty string because it encountered invalid sequences.