When assigning a type to a smart group, empty spaces and commas appear when listed on the manage groups page

Overview

Unwanted commas and spaces are appearing under the group type column on the manage groups page.

Example use-case

1. Click on Contacts -> Manage Groups.
2. Create a group and select type "Mailing List", save

Current behaviour

• On the manage groups page you now see under group type, ", Mailing List,"
• This is only for newly created Smart Groups (it doesn't happen when creating a new static group)
• Occurs even if there's only 1 option available

Proposed behaviour

It should simply say "Mailing List" without commas or spaces