Managing members - when viewing by tag, unable to use any sorting method

Just a bug report.

In the members app admin, you can sort members by Email, Joined and Status. The URL changes to the following when making Joined display member by most recent:

/perch/addons/apps/perch_members/?sort=^memberCreated

And when filtering members 'By Tag', these sorting options are still available, clickable and updates the URL to:

/perch/addons/apps/perch_members/?tag=standard&sort=^memberCreated

But nothing gets sorted. With a lot of members across a few different tags, it’s quite frustrating not having those options working.