[wp-trac] [WordPress Trac] #33785: cannot login when someone got similar login but with polish special chars

[WordPress Trac]

#33785: cannot login when someone got similar login but with polish special chars
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 Reporter:  nook86                  |       Owner:  (none)
     Type:  defect (bug)            |      Status:  closed
 Priority:  normal                  |   Milestone:
Component:  Login and Registration  |     Version:
 Severity:  normal                  |  Resolution:  invalid
 Keywords:                          |     Focuses:
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Changes (by desrosj):

 * status:  new => closed
 * version:  4.3 =>
 * resolution:   => invalid


Comment:

 Hi @nook86,

 Welcome to Trac! First of, my apologies that this took so long to receive
 a response.

 I'm not sure if you're still experiencing this issue, but I've done some
 testing on the version indicated in the initial report (4.3) and the most
 recent version of WordPress (currently 6.6) and neither version allows a
 the `ł` character to be submitted in the username or e-mail field. I tried
 both the admin facing `users.php` screen and the register option for `wp-
 login.php` when a site has open registration.

 Looking at the code, it appears that removing all accents from usernames
 has been the behavior for quite a while. I traced the corresponding unit
 test back to when it was initially migrated from the old unit test
 subversion repository into the one used now in [25002], which was done
 during the 3.7 release cycle.

 If I had to guess, the user must have been added manually somehow (maybe
 through PHPMyAdmin).

 I'm going to close this out as `invalid` because this is intended
 behavior.

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Ticket URL: <https://core.trac.wordpress.org/ticket/33785#comment:1>
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