[wp-trac] [WordPress Trac] #54558: Notice: Undefined index in WordPress 5.9 Beta

[WordPress Trac]

#54558: Notice: Undefined index in WordPress 5.9 Beta
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 Reporter:  kafleg                   |       Owner:  (none)
     Type:  defect (bug)             |      Status:  new
 Priority:  normal                   |   Milestone:  5.9
Component:  Editor                   |     Version:
 Severity:  normal                   |  Resolution:
 Keywords:  has-patch needs-testing  |     Focuses:
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Comment (by mukesh27):

 Hi there!

 In addition to the error, I also see the below error in my error log.

 PHP Warning:  array_keys() expects parameter 1 to be array, bool given in
 /wordpress/wp-includes/update.php on line 993
 PHP Warning:  Invalid argument supplied for foreach() in /wordpress/wp-
 includes/update.php on line 993

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Ticket URL: <https://core.trac.wordpress.org/ticket/54558#comment:5>
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