Users filtering by patron group fails if group contains comma or period

Steps to repro:

1. Log into snapshot
2. Go to Settings > Users and create a patron group containing non-alpha numeric characters (e.g. UC Stu/College Quarter)
3. Go to Users and assign this patron group to a user
4. Now use filters to filter by that patron group

Actual result: No results

Expected: Should return matching user

Additional info:

• If you go into settings and remove the non-alphanumeric characters from the patron group description, the filter works fine again
• I tried including a number in a patron group description and that didn't cause problems

Example from BugFest environment:

For example, filter for UC Stu/College Quarter
no results
But, search for George Wickham, barcode 12251798
He has that patron group assigned.