Group digest not stripping out embedded JS code.

1. Go to GPS Groups and create a new discussion with an embedded JS.
http://www.gpsnetwork.org/xwiki/bin/view/Discussions_Group_ReadingLiteracy/Topic_12?viewer=conversationstopic#.VFfNQ_nF-So
2. View the digest

Bug
Digest is showing the JS code.

"NEA GPS Network

Dear Dominique Nguyen,

the following activities happened in the past week in your Elementary Reading Literacy group.

10/26/2014 09:05 PM EDT - Amy Kappele created a discussion topic with the title "What professional learning would you be interested in with Dr. Laurie Elish-Piper?" in the group.
<script type="text/javascript" charset="utf-8" src="http://static.polldaddy.com/p/8402476.js"></script> <noscript><a href="http://polldaddy.com/poll/8402476/">What… Read More"