EVALSYS-1189 - fixed crash with the rich text evolver by removing the decorator

git-svn-id: https://source.sakaiproject.org/contrib/evaluation/trunk@78200 fdecad78-55fc-0310-b1b2-d7d25cf747c9
EVALSYS-1192
merging fix from 1.4.x branch back to trunk.
fixed crash with the rich text evolver by removing the decorator.

git-svn-id: https://source.sakaiproject.org/contrib/evaluation/trunk@78283 fdecad78-55fc-0310-b1b2-d7d25cf747c9