[wp-trac] [WordPress Trac] #58183: PHP notice when accessing Customizer with a classic theme without widgets

[WordPress Trac]

#58183: PHP notice when accessing Customizer with a classic theme without widgets
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 Reporter:  kraftner      |       Owner:  (none)
     Type:  defect (bug)  |      Status:  new
 Priority:  normal        |   Milestone:  Awaiting Review
Component:  Customize     |     Version:
 Severity:  normal        |  Resolution:
 Keywords:                |     Focuses:
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Comment (by kraftner):

 Okay, now I get it. It would indeed be shown for a block theme.

 So the right approach here probably is to do the same as was done for the
 navigation panel. Revert [52622] but then deactivate it for block themes
 by adding something similar to the [https://github.com/WordPress
 /wordpress-develop/blob/26e3948fca904db17a588d3736b3db59f8007daa/src/wp-
 includes/theme.php#L4267-L4284 menu panel removal].

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Ticket URL: <https://core.trac.wordpress.org/ticket/58183#comment:6>
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