Starting very recently (I think within the last 2 weeks), the user export has changed, for me, in Jira. Or, I have forgotten how to do it.
I export the list of active users and include their groups:

The exported list used to show the users as many times as the groups they were members of (very nice to sort by group) and now it shows the user one time, and the last column shows all the groups they belong to (comma separated).

Am I doing something wrong? I really can't work with it like this.