[wp-trac] [WordPress Trac] #12665: Mixed-case usernames not working

[WordPress Trac]

#12665: Mixed-case usernames not working
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 Reporter:  roblgs        |       Owner:                             
     Type:  defect (bug)  |      Status:  new                        
 Priority:  normal        |   Milestone:  Unassigned                 
Component:  Users         |     Version:  2.9.2                      
 Severity:  normal        |    Keywords:  authorisation, login, admin
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 Setting up new accounts it is possible to use a mixed-case login name, and
 these get recorded into the database as user_login. When specifying a
 mixed-case login name there is no warning message to say they are not
 allowed, and the rendering of the login name is mixed-case when presented
 within the profile. Nothing to suggest it is anything but mixed-case.

 However, trying to login using a mixed-case username fails. This is
 repeatable.

 However, if I try logging in with an all lowercase version of a mixed-case
 login name then the login succeeds... Despite the fact that he value held
 as user_login in the database is correctly recorded as mixed case!

 The user profile though still correctly displays the login name as mixed-
 case, it is recorded in the databas as mixed case, but logging in using
 mixed-case will fail.

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Ticket URL: <http://core.trac.wordpress.org/ticket/12665>
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