Double URL encoding in title of group members page

If you have a group with RFC3986 Reserved Characters in the name, after attempting to add a user, the group name is printed URL encoded:

Group List Page

Group Members Page after attempting to add a user

The URL on first entering the Group Members Page has the Group name URL encoded correctly:
http://qa-eac.atlassian.com/confluence/admin/users/domembersofgroupsearch.action?membersOfGroupTerm=%22%27%26%3C%3E

But on subsequent entry, it has been double encoded:
http://qa-eac.atlassian.com/confluence/admin/users/domembersofgroupsearch.action?membersOfGroupTerm=%2522%2527%2526%253C%253E