[wp-trac] [WordPress Trac] #22270: update-core.php is empty after choosing core upgrade to 3.4.2

[WordPress Trac]

#22270: update-core.php is empty after choosing core upgrade to 3.4.2
-----------------------------+-----------------------------
 Reporter:  szotsaki         |       Type:  defect (bug)
   Status:  new              |   Priority:  normal
Milestone:  Awaiting Review  |  Component:  Upgrade/Install
  Version:  3.4.1            |   Severity:  major
 Keywords:                   |
-----------------------------+-----------------------------
 On a WP install 3.4.1 I noticed there is an option to upgrade to 3.4.2.

 I invoked the URL "/wp-admin/update-core.php?action=do-core-upgrade" with
 the blue button and only an empty, blank page appeared.

 POST variables:
 {{{
 _wp_http_referer        ...
 _wpnonce        ...
 locale  hu_HU
 upgrade Frissítés most!
 version 3.4.2
 }}}


 I debugged that in /wp-admin/includes/update.php:73 in the
 "find_core_update()" function, on the first line, the variable $from_api
 gets a bool(false) value and that's why the whole function immediately
 returns with false.

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Ticket URL: <http://core.trac.wordpress.org/ticket/22270>
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