[wp-trac] [WordPress Trac] #25462: set_group fails on deregistered but not dequeued

[WordPress Trac]

#25462: set_group fails on deregistered but not dequeued
------------------------------+-----------------------------
 Reporter:  tivnet            |      Owner:
     Type:  defect (bug)      |     Status:  new
 Priority:  normal            |  Milestone:  Awaiting Review
Component:  Warnings/Notices  |    Version:
 Severity:  normal            |   Keywords:  has-patch
------------------------------+-----------------------------
 This:

 {{{
 add_action('wp_print_scripts', function () {
         wp_deregister_script('autosave');
 });
 }}}

 results in:

 {{{
 PHP Notice:  Undefined index: autosave in class.wp-scripts.php on line 169
 PHP Notice:  Trying to get property of non-object in class.wp-scripts.php
 on line 169
 }}}

 With `wp_dequeue_script('autosave');`, everything is fine.

 But without `dequeue`, probably, the attached patch might help.

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Ticket URL: <http://core.trac.wordpress.org/ticket/25462>
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