[wp-trac] [WordPress Trac] #57394: wp_insert_user allows the new user to have a username equal to an already registered email

[WordPress Trac]

#57394: wp_insert_user allows the new user to have a username equal to an already
registered email
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 Reporter:  buutqn                  |       Owner:  (none)
     Type:  defect (bug)            |      Status:  new
 Priority:  normal                  |   Milestone:  Awaiting Review
Component:  Login and Registration  |     Version:  6.1.1
 Severity:  normal                  |  Resolution:
 Keywords:  needs-patch             |     Focuses:
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Comment (by dunhakdis):

 I was able to reproduce the same behaviour. I think it should throw a
 WP_Error if the supplied username already exists as an email of an
 existing user.

 The same behaviour can be reproduced with wp-login.php?action=register
 form.

 Added a patch.

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Ticket URL: <https://core.trac.wordpress.org/ticket/57394#comment:1>
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