[wp-trac] [WordPress Trac] #30959: race condition in wp_insert_user()

[WordPress Trac]

#30959: race condition in wp_insert_user()
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 Reporter:  hanelyp       |       Owner:  (none)
     Type:  defect (bug)  |      Status:  new
 Priority:  normal        |   Milestone:
Component:  Users         |     Version:  4.1
 Severity:  normal        |  Resolution:
 Keywords:                |     Focuses:
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Comment (by simonbuerger):

 @iandunn that UNIQUE constraint being discussed is on user_email though,
 which I understand would break existing installs relying on non-unique
 emails - but I assume they still have unique user logins. So can there not
 be a constraint just on user_login?

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Ticket URL: <https://core.trac.wordpress.org/ticket/30959#comment:7>
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