Ref T4589. We don't recognize task descriptions as remarkup blocks, so {F...} references in them do not get attached to the objects, and thus no policy exemption is created.

Recognize them, which activates {F...} and @mentions.

We probably have a few more of these in other applications, but it's not a big deal to clean them up as they arise.

Uploaded a file to a task in the description field, saw it attach and get a policy exemption.