Comment 13 for bug 731647

I don't believe this is still a problem.

To upload a CSV file of users that contain some new users and some old users works as expected

- when not enabling the 'Update users' option we get error messages about what went wrong
- when enabling the 'Update users' option we get information about what users were added and what users were updated

I didn't get any site error when uploading a CSV where there was a line containing existing username for one user and existing email for another user - I got the expected

Line 4 of the file specifies the email address "<email address hidden>" that is already taken by another user.

So this looks to be all working now