[wp-trac] [WordPress Trac] #24625: "File not found" in admin area after upgrade from 3.5.1 to 3.5.2

[WordPress Trac]

#24625: "File not found" in admin area after upgrade from 3.5.1 to 3.5.2
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 Reporter:  _doherty         |      Owner:
     Type:  defect (bug)     |     Status:  new
 Priority:  normal           |  Milestone:  Awaiting Review
Component:  Upgrade/Install  |    Version:  trunk
 Severity:  normal           |   Keywords:
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 After upgrading Wordpress from 3.5.1 to 3.5.2, my blog's admin area became
 inaccessible.

 Requests for any page inside wp-admin resulted in "File not found". In the
 server logs, I saw 'FastCGI sent in stderr: "Primary script unknown"'.
 Wordpress content pages were served normally.

 Server configuration was not changed as part of this upgrade.

 After reverting the upgrade, the admin area became accessible again. I
 repeated the upgrade, and it failed a second time.

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Ticket URL: <http://core.trac.wordpress.org/ticket/24625>
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