protect user admin update username against population

[syntithenai]

I am normally logged into cmfive using auth details admin/admin

When I create a new user, login as them and edit their profile, the form is autopopulated with the admin user details from the browser form autofill.

So if I'm not watching, I end up updating the username to admin (which shouldn't be possible either)

[adam-buckley]

This is a Chrome issue only apparently. I've had this issue in the past and the fix is not elegant at all...

Edit: maybe this is a nicer solution

[adam-buckley]

I think the latest version of Chrome finally fixes this issue, i.e. no longer prefilling: